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72 Easy Science Experiments Using Materials You Already Have On Hand

Because science doesn’t have to be complicated.

Easy science experiments including a "naked" egg and "leakproof" bag

If there is one thing that is guaranteed to get your students excited, it’s a good science experiment! While some experiments require expensive lab equipment or dangerous chemicals, there are plenty of cool projects you can do with regular household items. We’ve rounded up a big collection of easy science experiments that anybody can try, and kids are going to love them!

Easy Chemistry Science Experiments

Easy physics science experiments, easy biology and environmental science experiments, easy engineering experiments and stem challenges.

Skittles form a circle around a plate. The colors are bleeding toward the center of the plate. (easy science experiments)

1. Taste the Rainbow

Teach your students about diffusion while creating a beautiful and tasty rainbow! Tip: Have extra Skittles on hand so your class can eat a few!

Learn more: Skittles Diffusion

Colorful rock candy on wooden sticks

2. Crystallize sweet treats

Crystal science experiments teach kids about supersaturated solutions. This one is easy to do at home, and the results are absolutely delicious!

Learn more: Candy Crystals

3. Make a volcano erupt

This classic experiment demonstrates a chemical reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid), which produces carbon dioxide gas, water, and sodium acetate.

Learn more: Best Volcano Experiments

4. Make elephant toothpaste

This fun project uses yeast and a hydrogen peroxide solution to create overflowing “elephant toothpaste.” Tip: Add an extra fun layer by having kids create toothpaste wrappers for plastic bottles.

Girl making an enormous bubble with string and wire

5. Blow the biggest bubbles you can

Add a few simple ingredients to dish soap solution to create the largest bubbles you’ve ever seen! Kids learn about surface tension as they engineer these bubble-blowing wands.

Learn more: Giant Soap Bubbles

Plastic bag full of water with pencils stuck through it

6. Demonstrate the “magic” leakproof bag

All you need is a zip-top plastic bag, sharp pencils, and water to blow your kids’ minds. Once they’re suitably impressed, teach them how the “trick” works by explaining the chemistry of polymers.

Learn more: Leakproof Bag

Several apple slices are shown on a clear plate. There are cards that label what they have been immersed in (including salt water, sugar water, etc.) (easy science experiments)

7. Use apple slices to learn about oxidation

Have students make predictions about what will happen to apple slices when immersed in different liquids, then put those predictions to the test. Have them record their observations.

Learn more: Apple Oxidation

8. Float a marker man

Their eyes will pop out of their heads when you “levitate” a stick figure right off the table! This experiment works due to the insolubility of dry-erase marker ink in water, combined with the lighter density of the ink.

Learn more: Floating Marker Man

Mason jars stacked with their mouths together, with one color of water on the bottom and another color on top

9. Discover density with hot and cold water

There are a lot of easy science experiments you can do with density. This one is extremely simple, involving only hot and cold water and food coloring, but the visuals make it appealing and fun.

Learn more: Layered Water

Clear cylinder layered with various liquids in different colors

10. Layer more liquids

This density demo is a little more complicated, but the effects are spectacular. Slowly layer liquids like honey, dish soap, water, and rubbing alcohol in a glass. Kids will be amazed when the liquids float one on top of the other like magic (except it is really science).

Learn more: Layered Liquids

Giant carbon snake growing out of a tin pan full of sand

11. Grow a carbon sugar snake

Easy science experiments can still have impressive results! This eye-popping chemical reaction demonstration only requires simple supplies like sugar, baking soda, and sand.

Learn more: Carbon Sugar Snake

12. Mix up some slime

Tell kids you’re going to make slime at home, and watch their eyes light up! There are a variety of ways to make slime, so try a few different recipes to find the one you like best.

Two children are shown (without faces) bouncing balls on a white table

13. Make homemade bouncy balls

These homemade bouncy balls are easy to make since all you need is glue, food coloring, borax powder, cornstarch, and warm water. You’ll want to store them inside a container like a plastic egg because they will flatten out over time.

Learn more: Make Your Own Bouncy Balls

Pink sidewalk chalk stick sitting on a paper towel

14. Create eggshell chalk

Eggshells contain calcium, the same material that makes chalk. Grind them up and mix them with flour, water, and food coloring to make your very own sidewalk chalk.

Learn more: Eggshell Chalk

Science student holding a raw egg without a shell

15. Make naked eggs

This is so cool! Use vinegar to dissolve the calcium carbonate in an eggshell to discover the membrane underneath that holds the egg together. Then, use the “naked” egg for another easy science experiment that demonstrates osmosis .

Learn more: Naked Egg Experiment

16. Turn milk into plastic

This sounds a lot more complicated than it is, but don’t be afraid to give it a try. Use simple kitchen supplies to create plastic polymers from plain old milk. Sculpt them into cool shapes when you’re done!

Student using a series of test tubes filled with pink liquid

17. Test pH using cabbage

Teach kids about acids and bases without needing pH test strips! Simply boil some red cabbage and use the resulting water to test various substances—acids turn red and bases turn green.

Learn more: Cabbage pH

Pennies in small cups of liquid labeled coca cola, vinegar + salt, apple juice, water, catsup, and vinegar. Text reads Cleaning Coins Science Experiment. Step by step procedure and explanation.

18. Clean some old coins

Use common household items to make old oxidized coins clean and shiny again in this simple chemistry experiment. Ask kids to predict (hypothesize) which will work best, then expand the learning by doing some research to explain the results.

Learn more: Cleaning Coins

Glass bottle with bowl holding three eggs, small glass with matches sitting on a box of matches, and a yellow plastic straw, against a blue background

19. Pull an egg into a bottle

This classic easy science experiment never fails to delight. Use the power of air pressure to suck a hard-boiled egg into a jar, no hands required.

Learn more: Egg in a Bottle

20. Blow up a balloon (without blowing)

Chances are good you probably did easy science experiments like this when you were in school. The baking soda and vinegar balloon experiment demonstrates the reactions between acids and bases when you fill a bottle with vinegar and a balloon with baking soda.

21 Assemble a DIY lava lamp

This 1970s trend is back—as an easy science experiment! This activity combines acid-base reactions with density for a totally groovy result.

Four colored cups containing different liquids, with an egg in each

22. Explore how sugary drinks affect teeth

The calcium content of eggshells makes them a great stand-in for teeth. Use eggs to explore how soda and juice can stain teeth and wear down the enamel. Expand your learning by trying different toothpaste-and-toothbrush combinations to see how effective they are.

Learn more: Sugar and Teeth Experiment

23. Mummify a hot dog

If your kids are fascinated by the Egyptians, they’ll love learning to mummify a hot dog! No need for canopic jars , just grab some baking soda and get started.

24. Extinguish flames with carbon dioxide

This is a fiery twist on acid-base experiments. Light a candle and talk about what fire needs in order to survive. Then, create an acid-base reaction and “pour” the carbon dioxide to extinguish the flame. The CO2 gas acts like a liquid, suffocating the fire.

I Love You written in lemon juice on a piece of white paper, with lemon half and cotton swabs

25. Send secret messages with invisible ink

Turn your kids into secret agents! Write messages with a paintbrush dipped in lemon juice, then hold the paper over a heat source and watch the invisible become visible as oxidation goes to work.

Learn more: Invisible Ink

26. Create dancing popcorn

This is a fun version of the classic baking soda and vinegar experiment, perfect for the younger crowd. The bubbly mixture causes popcorn to dance around in the water.

Students looking surprised as foamy liquid shoots up out of diet soda bottles

27. Shoot a soda geyser sky-high

You’ve always wondered if this really works, so it’s time to find out for yourself! Kids will marvel at the chemical reaction that sends diet soda shooting high in the air when Mentos are added.

Learn more: Soda Explosion

Empty tea bags burning into ashes

28. Send a teabag flying

Hot air rises, and this experiment can prove it! You’ll want to supervise kids with fire, of course. For more safety, try this one outside.

Learn more: Flying Tea Bags

Magic Milk Experiment How to Plus Free Worksheet

29. Create magic milk

This fun and easy science experiment demonstrates principles related to surface tension, molecular interactions, and fluid dynamics.

Learn more: Magic Milk Experiment

Two side-by-side shots of an upside-down glass over a candle in a bowl of water, with water pulled up into the glass in the second picture

30. Watch the water rise

Learn about Charles’s Law with this simple experiment. As the candle burns, using up oxygen and heating the air in the glass, the water rises as if by magic.

Learn more: Rising Water

Glasses filled with colored water, with paper towels running from one to the next

31. Learn about capillary action

Kids will be amazed as they watch the colored water move from glass to glass, and you’ll love the easy and inexpensive setup. Gather some water, paper towels, and food coloring to teach the scientific magic of capillary action.

Learn more: Capillary Action

A pink balloon has a face drawn on it. It is hovering over a plate with salt and pepper on it

32. Give a balloon a beard

Equally educational and fun, this experiment will teach kids about static electricity using everyday materials. Kids will undoubtedly get a kick out of creating beards on their balloon person!

Learn more: Static Electricity

DIY compass made from a needle floating in water

33. Find your way with a DIY compass

Here’s an old classic that never fails to impress. Magnetize a needle, float it on the water’s surface, and it will always point north.

Learn more: DIY Compass

34. Crush a can using air pressure

Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure!

A large piece of cardboard has a white circle in the center with a pencil standing upright in the middle of the circle. Rocks are on all four corners holding it down.

35. Tell time using the sun

While people use clocks or even phones to tell time today, there was a time when a sundial was the best means to do that. Kids will certainly get a kick out of creating their own sundials using everyday materials like cardboard and pencils.

Learn more: Make Your Own Sundial

36. Launch a balloon rocket

Grab balloons, string, straws, and tape, and launch rockets to learn about the laws of motion.

Steel wool sitting in an aluminum tray. The steel wool appears to be on fire.

37. Make sparks with steel wool

All you need is steel wool and a 9-volt battery to perform this science demo that’s bound to make their eyes light up! Kids learn about chain reactions, chemical changes, and more.

Learn more: Steel Wool Electricity

38. Levitate a Ping-Pong ball

Kids will get a kick out of this experiment, which is really all about Bernoulli’s principle. You only need plastic bottles, bendy straws, and Ping-Pong balls to make the science magic happen.

Colored water in a vortex in a plastic bottle

39. Whip up a tornado in a bottle

There are plenty of versions of this classic experiment out there, but we love this one because it sparkles! Kids learn about a vortex and what it takes to create one.

Learn more: Tornado in a Bottle

Homemade barometer using a tin can, rubber band, and ruler

40. Monitor air pressure with a DIY barometer

This simple but effective DIY science project teaches kids about air pressure and meteorology. They’ll have fun tracking and predicting the weather with their very own barometer.

Learn more: DIY Barometer

A child holds up a pice of ice to their eye as if it is a magnifying glass. (easy science experiments)

41. Peer through an ice magnifying glass

Students will certainly get a thrill out of seeing how an everyday object like a piece of ice can be used as a magnifying glass. Be sure to use purified or distilled water since tap water will have impurities in it that will cause distortion.

Learn more: Ice Magnifying Glass

Piece of twine stuck to an ice cube

42. String up some sticky ice

Can you lift an ice cube using just a piece of string? This quick experiment teaches you how. Use a little salt to melt the ice and then refreeze the ice with the string attached.

Learn more: Sticky Ice

Drawing of a hand with the thumb up and a glass of water

43. “Flip” a drawing with water

Light refraction causes some really cool effects, and there are multiple easy science experiments you can do with it. This one uses refraction to “flip” a drawing; you can also try the famous “disappearing penny” trick .

Learn more: Light Refraction With Water

44. Color some flowers

We love how simple this project is to re-create since all you’ll need are some white carnations, food coloring, glasses, and water. The end result is just so beautiful!

Square dish filled with water and glitter, showing how a drop of dish soap repels the glitter

45. Use glitter to fight germs

Everyone knows that glitter is just like germs—it gets everywhere and is so hard to get rid of! Use that to your advantage and show kids how soap fights glitter and germs.

Learn more: Glitter Germs

Plastic bag with clouds and sun drawn on it, with a small amount of blue liquid at the bottom

46. Re-create the water cycle in a bag

You can do so many easy science experiments with a simple zip-top bag. Fill one partway with water and set it on a sunny windowsill to see how the water evaporates up and eventually “rains” down.

Learn more: Water Cycle

Plastic zipper bag tied around leaves on a tree

47. Learn about plant transpiration

Your backyard is a terrific place for easy science experiments. Grab a plastic bag and rubber band to learn how plants get rid of excess water they don’t need, a process known as transpiration.

Learn more: Plant Transpiration

Students sit around a table that has a tin pan filled with blue liquid wiht a feather floating in it (easy science experiments)

48. Clean up an oil spill

Before conducting this experiment, teach your students about engineers who solve environmental problems like oil spills. Then, have your students use provided materials to clean the oil spill from their oceans.

Learn more: Oil Spill

Sixth grade student holding model lungs and diaphragm made from a plastic bottle, duct tape, and balloons

49. Construct a pair of model lungs

Kids get a better understanding of the respiratory system when they build model lungs using a plastic water bottle and some balloons. You can modify the experiment to demonstrate the effects of smoking too.

Learn more: Model Lungs

Child pouring vinegar over a large rock in a bowl

50. Experiment with limestone rocks

Kids  love to collect rocks, and there are plenty of easy science experiments you can do with them. In this one, pour vinegar over a rock to see if it bubbles. If it does, you’ve found limestone!

Learn more: Limestone Experiments

Plastic bottle converted to a homemade rain gauge

51. Turn a bottle into a rain gauge

All you need is a plastic bottle, a ruler, and a permanent marker to make your own rain gauge. Monitor your measurements and see how they stack up against meteorology reports in your area.

Learn more: DIY Rain Gauge

Pile of different colored towels pushed together to create folds like mountains

52. Build up towel mountains

This clever demonstration helps kids understand how some landforms are created. Use layers of towels to represent rock layers and boxes for continents. Then pu-u-u-sh and see what happens!

Learn more: Towel Mountains

Layers of differently colored playdough with straw holes punched throughout all the layers

53. Take a play dough core sample

Learn about the layers of the earth by building them out of Play-Doh, then take a core sample with a straw. ( Love Play-Doh? Get more learning ideas here. )

Learn more: Play Dough Core Sampling

Science student poking holes in the bottom of a paper cup in the shape of a constellation

54. Project the stars on your ceiling

Use the video lesson in the link below to learn why stars are only visible at night. Then create a DIY star projector to explore the concept hands-on.

Learn more: DIY Star Projector

Glass jar of water with shaving cream floating on top, with blue food coloring dripping through, next to a can of shaving cream

55. Make it rain

Use shaving cream and food coloring to simulate clouds and rain. This is an easy science experiment little ones will beg to do over and over.

Learn more: Shaving Cream Rain

56. Blow up your fingerprint

This is such a cool (and easy!) way to look at fingerprint patterns. Inflate a balloon a bit, use some ink to put a fingerprint on it, then blow it up big to see your fingerprint in detail.

Edible DNA model made with Twizzlers, gumdrops, and toothpicks

57. Snack on a DNA model

Twizzlers, gumdrops, and a few toothpicks are all you need to make this super-fun (and yummy!) DNA model.

Learn more: Edible DNA Model

58. Dissect a flower

Take a nature walk and find a flower or two. Then bring them home and take them apart to discover all the different parts of flowers.

DIY smartphone amplifier made from paper cups

59. Craft smartphone speakers

No Bluetooth speaker? No problem! Put together your own from paper cups and toilet paper tubes.

Learn more: Smartphone Speakers

Car made from cardboard with bottlecap wheels and powered by a blue balloon

60. Race a balloon-powered car

Kids will be amazed when they learn they can put together this awesome racer using cardboard and bottle-cap wheels. The balloon-powered “engine” is so much fun too.

Learn more: Balloon-Powered Car

Miniature Ferris Wheel built out of colorful wood craft sticks

61. Build a Ferris wheel

You’ve probably ridden on a Ferris wheel, but can you build one? Stock up on wood craft sticks and find out! Play around with different designs to see which one works best.

Learn more: Craft Stick Ferris Wheel

62. Design a phone stand

There are lots of ways to craft a DIY phone stand, which makes this a perfect creative-thinking STEM challenge.

63. Conduct an egg drop

Put all their engineering skills to the test with an egg drop! Challenge kids to build a container from stuff they find around the house that will protect an egg from a long fall (this is especially fun to do from upper-story windows).

Learn more: Egg Drop Challenge Ideas

Student building a roller coaster of drinking straws for a ping pong ball (Fourth Grade Science)

64. Engineer a drinking-straw roller coaster

STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws.

Learn more: Straw Roller Coaster

Outside Science Solar Oven Desert Chica

65. Build a solar oven

Explore the power of the sun when you build your own solar ovens and use them to cook some yummy treats. This experiment takes a little more time and effort, but the results are always impressive. The link below has complete instructions.

Learn more: Solar Oven

Mini Da Vinci bridge made of pencils and rubber bands

66. Build a Da Vinci bridge

There are plenty of bridge-building experiments out there, but this one is unique. It’s inspired by Leonardo da Vinci’s 500-year-old self-supporting wooden bridge. Learn how to build it at the link, and expand your learning by exploring more about Da Vinci himself.

Learn more: Da Vinci Bridge

67. Step through an index card

This is one easy science experiment that never fails to astonish. With carefully placed scissor cuts on an index card, you can make a loop large enough to fit a (small) human body through! Kids will be wowed as they learn about surface area.

Student standing on top of a structure built from cardboard sheets and paper cups

68. Stand on a pile of paper cups

Combine physics and engineering and challenge kids to create a paper cup structure that can support their weight. This is a cool project for aspiring architects.

Learn more: Paper Cup Stack

Child standing on a stepladder dropping a toy attached to a paper parachute

69. Test out parachutes

Gather a variety of materials (try tissues, handkerchiefs, plastic bags, etc.) and see which ones make the best parachutes. You can also find out how they’re affected by windy days or find out which ones work in the rain.

Learn more: Parachute Drop

Students balancing a textbook on top of a pyramid of rolled up newspaper

70. Recycle newspapers into an engineering challenge

It’s amazing how a stack of newspapers can spark such creative engineering. Challenge kids to build a tower, support a book, or even build a chair using only newspaper and tape!

Learn more: Newspaper STEM Challenge

Plastic cup with rubber bands stretched across the opening

71. Use rubber bands to sound out acoustics

Explore the ways that sound waves are affected by what’s around them using a simple rubber band “guitar.” (Kids absolutely love playing with these!)

Learn more: Rubber Band Guitar

Science student pouring water over a cupcake wrapper propped on wood craft sticks

72. Assemble a better umbrella

Challenge students to engineer the best possible umbrella from various household supplies. Encourage them to plan, draw blueprints, and test their creations using the scientific method.

Learn more: Umbrella STEM Challenge

Plus, sign up for our newsletters to get all the latest learning ideas straight to your inbox.

Science doesn't have to be complicated! Try these easy science experiments using items you already have around the house or classroom.

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37 Cool Science Experiments for Kids to Do at Home

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General Education

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Are you looking for cool science experiments for kids at home or for class? We've got you covered! We've compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that'll really power a lightbulb, and more.

Below are 37 of the best science projects for kids to try. For each one we include a description of the experiment, which area(s) of science it teaches kids about, how difficult it is (easy/medium/hard), how messy it is (low/medium/high), and the materials you need to do the project. Note that experiments labelled "hard" are definitely still doable; they just require more materials or time than most of these other science experiments for kids.

#1: Insect Hotels

  • Teaches Kids About: Zoology
  • Difficulty Level: Medium
  • Messiness Level: Medium

Insect hotels can be as simple (just a few sticks wrapped in a bundle) or as elaborate as you'd like, and they're a great way for kids to get creative making the hotel and then get rewarded by seeing who has moved into the home they built. After creating a hotel with hiding places for bugs, place it outside (near a garden is often a good spot), wait a few days, then check it to see who has occupied the "rooms." You can also use a bug ID book or app to try and identify the visitors.

  • Materials Needed
  • Shadow box or other box with multiple compartments
  • Hot glue gun with glue
  • Sticks, bark, small rocks, dried leaves, bits of yarn/wool, etc.

insect hotel

#2: DIY Lava Lamp

  • Teaches Kids About: Chemical reactions
  • Difficulty Level: Easy

In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp . Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring. Just add the ingredients together and you'll end up with a homemade lava lamp!

  • Vegetable oil
  • Food coloring
  • Antacid tablets

#3: Magnetic Slime

  • Teaches Kids About: Magnets
  • Messiness Level: High (The slime is black and will slightly dye your fingers when you play with it, but it washes off easily.)

A step up from silly putty and Play-Doh, magnetic slime is fun to play with but also teaches kids about magnets and how they attract and repel each other. Some of the ingredients you aren't likely to have around the house, but they can all be purchased online. After mixing the ingredients together, you can use the neodymium magnet (regular magnets won't be strong enough) to make the magnetic slime move without touching it!

  • Liquid starch
  • Adhesive glue
  • Iron oxide powder
  • Neodymium (rare earth) magnet

#4: Baking Soda Volcanoes

  • Teaches Kids About: Chemical reactions, earth science
  • Difficulty Level: Easy-medium
  • Messiness Level: High

Baking soda volcanoes are one of the classic science projects for kids, and they're also one of the most popular. It's hard to top the excitement of a volcano erupting inside your home. This experiment can also be as simple or in-depth as you like. For the eruption, all you need is baking soda and vinegar (dishwashing detergent adds some extra power to the eruption), but you can make the "volcano" as elaborate and lifelike as you wish.

  • Baking soda
  • Dishwashing detergent
  • Large mason jar or soda bottle
  • Playdough or aluminum foil to make the "volcano"
  • Additional items to place around the volcano (optional)
  • Food coloring (optional)

#5: Tornado in a Jar

  • Teaches Kids About: Weather
  • Messiness Level: Low

This is one of the quick and easy and science experiments for kids to teach them about weather. It only takes about five minutes and a few materials to set up, but once you have it ready you and your kids can create your own miniature tornado whose vortex you can see and the strength of which you can change depending on how quickly you swirl the jar.

  • Glitter (optional)

#6: Colored Celery Experiment

  • Teaches Kids About: Plants

This celery science experiment is another classic science experiment that parents and teachers like because it's easy to do and gives kids a great visual understanding of how transpiration works and how plants get water and nutrients. Just place celery stalks in cups of colored water, wait at least a day, and you'll see the celery leaves take on the color of the water. This happens because celery stalks (like other plants) contain small capillaries that they use to transport water and nutrients throughout the plant.

  • Celery stalks (can also use white flowers or pale-colored cabbage)

#7: Rain Cloud in a Jar

This experiment teaches kids about weather and lets them learn how clouds form by making their own rain cloud . This is definitely a science project that requires adult supervision since it uses boiling water as one of the ingredients, but once you pour the water into a glass jar, the experiment is fast and easy, and you'll be rewarded with a little cloud forming in the jar due to condensation.

  • Glass jar with a lid
  • Boiling water
  • Aerosol hairspray

body_rockcandy

#8: Edible Rock Candy

  • Teaches Kids About: Crystal formation

It takes about a week for the crystals of this rock candy experiment to form, but once they have you'll be able to eat the results! After creating a sugar solution, you'll fill jars with it and dangle strings in them that'll slowly become covered with the crystals. This experiment involves heating and pouring boiling water, so adult supervision is necessary, once that step is complete, even very young kids will be excited to watch crystals slowly form.

  • Large saucepan
  • Clothespins
  • String or small skewers
  • Candy flavoring (optional)

#9: Water Xylophone

  • Teaches Kids About: Sound waves

With just some basic materials you can create your own musical instrument to teach kids about sound waves. In this water xylophone experiment , you'll fill glass jars with varying levels of water. Once they're all lined up, kids can hit the sides with wooden sticks and see how the itch differs depending on how much water is in the jar (more water=lower pitch, less water=higher pitch). This is because sound waves travel differently depending on how full the jars are with water.

  • Wooden sticks/skewers

#10: Blood Model in a Jar

  • Teaches Kids About: Human biology

This blood model experiment is a great way to get kids to visual what their blood looks like and how complicated it really is. Each ingredient represents a different component of blood (plasma, platelets, red blood cells, etc.), so you just add a certain amount of each to the jar, swirl it around a bit, and you have a model of what your blood looks like.

  • Empty jar or bottle
  • Red cinnamon candies
  • Marshmallows or dry white lima beans
  • White sprinkles

#11: Potato Battery

  • Teaches Kids About: Electricity
  • Difficulty Level: Hard

Did you know that a simple potato can produce enough energy to keep a light bulb lit for over a month? You can create a simple potato battery to show kids. There are kits that provide all the necessary materials and how to set it up, but if you don't purchase one of these it can be a bit trickier to gather everything you need and assemble it correctly. Once it's set though, you'll have your own farm grown battery!

  • Fresh potato
  • Galvanized nail
  • Copper coin

body_pulley

#12: Homemade Pulley

  • Teaches Kids About: Simple machines

This science activity requires some materials you may not already have, but once you've gotten them, the homemade pulley takes only a few minutes to set up, and you can leave the pulley up for your kids to play with all year round. This pulley is best set up outside, but can also be done indoors.

  • Clothesline
  • 2 clothesline pulleys

#13: Light Refraction

  • Teaches Kids About: Light

This light refraction experiment takes only a few minutes to set up and uses basic materials, but it's a great way to show kids how light travels. You'll draw two arrows on a sticky note, stick it to the wall, then fill a clear water bottle with water. As you move the water bottle in front of the arrows, the arrows will appear to change the direction they're pointing. This is because of the refraction that occurs when light passes through materials like water and plastic.

  • Sticky note
  • Transparent water bottle

#14: Nature Journaling

  • Teaches Kids About: Ecology, scientific observation

A nature journal is a great way to encourage kids to be creative and really pay attention to what's going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they're doing now.

  • Blank journal or notebook
  • Pens/pencils/crayons/markers
  • Tape or glue for adding items to the journal

#15: DIY Solar Oven

  • Teaches Kids About: Solar energy

This homemade solar oven definitely requires some adult help to set up, but after it's ready you'll have your own mini oven that uses energy from the sun to make s'mores or melt cheese on pizza. While the food is cooking, you can explain to kids how the oven uses the sun's rays to heat the food.

  • Aluminum foil
  • Knife or box cutter
  • Permanent marker
  • Plastic cling wrap
  • Black construction paper

body_polarbears-1

#16: Animal Blubber Simulation

  • Teaches Kids About: Ecology, zoology

If your kids are curious about how animals like polar bears and seals stay warm in polar climates, you can go beyond just explaining it to them; you can actually have them make some of their own blubber and test it out. After you've filled up a large bowl with ice water and let it sit for a few minutes to get really cold, have your kids dip a bare hand in and see how many seconds they can last before their hand gets too cold. Next, coat one of their fingers in shortening and repeat the experiment. Your child will notice that, with the shortening acting like a protective layer of blubber, they don't feel the cold water nearly as much.

  • Bowl of ice water

#17: Static Electricity Butterfly

This experiment is a great way for young kids to learn about static electricity, and it's more fun and visual than just having them rub balloons against their heads. First you'll create a butterfly, using thick paper (such as cardstock) for the body and tissue paper for the wings. Then, blow up the balloon, have the kids rub it against their head for a few seconds, then move the balloon to just above the butterfly's wings. The wings will move towards the balloon due to static electricity, and it'll look like the butterfly is flying.

  • Tissue paper
  • Thick paper
  • Glue stick/glue

#18: Edible Double Helix

  • Teaches Kids About: Genetics

If your kids are learning about genetics, you can do this edible double helix craft to show them how DNA is formed, what its different parts are, and what it looks like. The licorice will form the sides or backbone of the DNA and each color of marshmallow will represent one of the four chemical bases. Kids will be able to see that only certain chemical bases pair with each other.

  • 2 pieces of licorice
  • 12 toothpicks
  • Small marshmallows in 4 colors (9 of each color)
  • 5 paperclips

#19: Leak-Proof Bag

  • Teaches Kids About: Molecules, plastics

This is an easy experiment that'll appeal to kids of a variety of ages. Just take a zip-lock bag, fill it about ⅔ of the way with water, and close the top. Next, poke a few sharp objects (like bamboo skewers or sharp pencils) through one end and out the other. At this point you may want to dangle the bag above your child's head, but no need to worry about spills because the bag won't leak? Why not? It's because the plastic used to make zip-lock bags is made of polymers, or long chains of molecules that'll quickly join back together when they're forced apart.

  • Zip-lock bags
  • Objects with sharp ends (pencils, bamboo skewers, etc.)

body_leaves

#20: How Do Leaves Breathe?

  • Teaches Kids About: Plant science

It takes a few hours to see the results of this leaf experiment , but it couldn't be easier to set up, and kids will love to see a leaf actually "breathing." Just get a large-ish leaf, place it in a bowl (glass works best so you can see everything) filled with water, place a small rock on the leaf to weigh it down, and leave it somewhere sunny. Come back in a few hours and you'll see little bubbles in the water created when the leaf releases the oxygen it created during photosynthesis.

  • Large bowl (preferably glass)
  • Magnifying glass (optional)

#21: Popsicle Stick Catapults

Kids will love shooting pom poms out of these homemade popsicle stick catapults . After assembling the catapults out of popsicle sticks, rubber bands, and plastic spoons, they're ready to launch pom poms or other lightweight objects. To teach kids about simple machines, you can ask them about how they think the catapults work, what they should do to make the pom poms go a farther/shorter distance, and how the catapult could be made more powerful.

  • Popsicle sticks
  • Rubber bands
  • Plastic spoons
  • Paint (optional)

#22: Elephant Toothpaste

You won't want to do this experiment near anything that's difficult to clean (outside may be best), but kids will love seeing this " elephant toothpaste " crazily overflowing the bottle and oozing everywhere. Pour the hydrogen peroxide, food coloring, and dishwashing soap into the bottle, and in the cup mix the yeast packet with some warm water for about 30 seconds. Then, add the yeast mixture to the bottle, stand back, and watch the solution become a massive foamy mixture that pours out of the bottle! The "toothpaste" is formed when the yeast removed the oxygen bubbles from the hydrogen peroxide which created foam. This is an exothermic reaction, and it creates heat as well as foam (you can have kids notice that the bottle became warm as the reaction occurred).

  • Clean 16-oz soda bottle
  • 6% solution of hydrogen peroxide
  • 1 packet of dry yeast
  • Dishwashing soap

#23: How Do Penguins Stay Dry?

Penguins, and many other birds, have special oil-producing glands that coat their feathers with a protective layer that causes water to slide right off them, keeping them warm and dry. You can demonstrate this to kids with this penguin craft by having them color a picture of a penguin with crayons, then spraying the picture with water. The wax from the crayons will have created a protective layer like the oil actual birds coat themselves with, and the paper won't absorb the water.

  • Penguin image (included in link)
  • Spray bottle
  • Blue food coloring (optional)

body_erosion

#24: Rock Weathering Experiment

  • Teaches Kids About: Geology

This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn't frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it's one of the causes of erosion.

  • Plastic wrap

#25: Saltwater Density

  • Teaches Kids About: Water density

For this saltwater density experiment , you'll fill four clear glasses with water, then add salt to one glass, sugar to one glass, and baking soda to one glass, leaving one glass with just water. Then, float small plastic pieces or grapes in each of the glasses and observe whether they float or not. Saltwater is denser than freshwater, which means some objects may float in saltwater that would sink in freshwater. You can use this experiment to teach kids about the ocean and other bodies of saltwater, such as the Dead Sea, which is so salty people can easily float on top of it.

  • Four clear glasses
  • Lightweight plastic objects or small grapes

#26: Starburst Rock Cycle

With just a package of Starbursts and a few other materials, you can create models of each of the three rock types: igneous, sedimentary, and metamorphic. Sedimentary "rocks" will be created by pressing thin layers of Starbursts together, metamorphic by heating and pressing Starbursts, and igneous by applying high levels of heat to the Starbursts. Kids will learn how different types of rocks are forms and how the three rock types look different from each other.

  • Toaster oven

#27: Inertia Wagon Experiment

  • Teaches Kids About: Inertia

This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won't be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton's first law.

  • Stack of books

#28: Dinosaur Tracks

  • Teaches Kids About: Paleontology

How are some dinosaur tracks still visible millions of years later? By mixing together several ingredients, you'll get a claylike mixture you can press your hands/feet or dinosaur models into to make dinosaur track imprints . The mixture will harden and the imprints will remain, showing kids how dinosaur (and early human) tracks can stay in rock for such a long period of time.

  • Used coffee grounds
  • Wooden spoon
  • Rolling pin

#29: Sidewalk Constellations

  • Teaches Kids About: Astronomy

If you do this sidewalk constellation craft , you'll be able to see the Big Dipper and Orion's Belt in the daylight. On the sidewalk, have kids draw the lines of constellations (using constellation diagrams for guidance) and place stones where the stars are. You can then look at astronomy charts to see where the constellations they drew will be in the sky.

  • Sidewalk chalk
  • Small stones
  • Diagrams of constellations

#30: Lung Model

By building a lung model , you can teach kids about respiration and how their lungs work. After cutting off the bottom of a plastic bottle, you'll stretch a balloon around the opened end and insert another balloon through the mouth of the bottle. You'll then push a straw through the neck of the bottle and secure it with a rubber band and play dough. By blowing into the straw, the balloons will inflate then deflate, similar to how our lungs work.

  • Plastic bottle
  • Rubber band

body_dinosaurbones

#31: Homemade Dinosaur Bones

By mixing just flour, salt, and water, you'll create a basic salt dough that'll harden when baked. You can use this dough to make homemade dinosaur bones and teach kids about paleontology. You can use books or diagrams to learn how different dinosaur bones were shaped, and you can even bury the bones in a sandpit or something similar and then excavate them the way real paleontologists do.

  • Images of dinosaur bones

#32: Clay and Toothpick Molecules

There are many variations on homemade molecule science crafts . This one uses clay and toothpicks, although gumdrops or even small pieces of fruit like grapes can be used in place of clay. Roll the clay into balls and use molecule diagrams to attach the clay to toothpicks in the shape of the molecules. Kids can make numerous types of molecules and learn how atoms bond together to form molecules.

  • Clay or gumdrops (in four colors)
  • Diagrams of molecules

#33: Articulated Hand Model

By creating an articulated hand model , you can teach kids about bones, joints, and how our hands are able to move in many ways and accomplish so many different tasks. After creating a hand out of thin foam, kids will cut straws to represent the different bones in the hand and glue them to the fingers of the hand models. You'll then thread yarn (which represents tendons) through the straws, stabilize the model with a chopstick or other small stick, and end up with a hand model that moves and bends the way actual human hands do.

  • Straws (paper work best)
  • Twine or yarn

#34: Solar Energy Experiment

  • Teaches Kids About: Solar energy, light rays

This solar energy science experiment will teach kids about solar energy and how different colors absorb different amounts of energy. In a sunny spot outside, place six colored pieces of paper next to each other, and place an ice cube in the middle of each paper. Then, observe how quickly each of the ice cubes melt. The ice cube on the black piece of paper will melt fastest since black absorbs the most light (all the light ray colors), while the ice cube on the white paper will melt slowest since white absorbs the least light (it instead reflects light). You can then explain why certain colors look the way they do. (Colors besides black and white absorb all light except for the one ray color they reflect; this is the color they appear to us.)

  • 6 squares of differently colored paper/cardstock (must include black paper and white paper)

#35: How to Make Lightning

  • Teaches Kids About: Electricity, weather

You don't need a storm to see lightning; you can actually create your own lightning at home . For younger kids this experiment requires adult help and supervision. You'll stick a thumbtack through the bottom of an aluminum tray, then stick the pencil eraser to the pushpin. You'll then rub the piece of wool over the aluminum tray, and then set the tray on the Styrofoam, where it'll create a small spark/tiny bolt of lightning!

  • Pencil with eraser
  • Aluminum tray or pie tin
  • Styrofoam tray

#36: Tie-Dyed Milk

  • Teaches Kids About: Surface tension

For this magic milk experiment , partly fill a shallow dish with milk, then add a one drop of each food coloring color to different parts of the milk. The food coloring will mostly stay where you placed it. Next, carefully add one drop of dish soap to the middle of the milk. It'll cause the food coloring to stream through the milk and away from the dish soap. This is because the dish soap breaks up the surface tension of the milk by dissolving the milk's fat molecules.

  • Shallow dish
  • Milk (high-fat works best)

body_stalactite

#37: How Do Stalactites Form?

Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment . By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you'll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.

  • Safety pins
  • 2 glass jars

Summary: Cool Science Experiments for Kids

Any one of these simple science experiments for kids can get children learning and excited about science. You can choose a science experiment based on your child's specific interest or what they're currently learning about, or you can do an experiment on an entirely new topic to expand their learning and teach them about a new area of science. From easy science experiments for kids to the more challenging ones, these will all help kids have fun and learn more about science.

What's Next?

Are you also interested in pipe cleaner crafts for kids? We have a guide to some of the best pipe cleaner crafts to try!

Looking for multiple different slime recipes? We tell you how to make slimes without borax and without glue as well as how to craft the ultimate super slime .

Want to learn more about clouds? Learn how to identify every cloud in the sky with our guide to the 10 types of clouds .

Want to know the fastest and easiest ways to convert between Fahrenheit and Celsius? We've got you covered! Check out our guide to the best ways to convert Celsius to Fahrenheit (or vice versa) .

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Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. In high school she scored in the 99th percentile on the SAT and was named a National Merit Finalist. She has taught English and biology in several countries.

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35 Easy Science Experiments You Can Do Today!

Looking for easy science experiments to do at home or in the classroom? You’re in luck because we’ve got over 35 easy science activities for kids that will help you make science fun for all ages. 

Most of these simple science experiments for kids are easy to prepare, quick to perform, and use household items or inexpensive materials you can find almost anywhere. To connect the fun to the “why it works” you’ll find an easy to teach explanation with every experiment!

Musical Jars Science Experiment 

fun cool science experiments at home

This super easy experiment is simple as it is fun! Kids make their own musical instruments with clear jars and water then investigate sound waves, pitch, and more.

When the experiment is complete, use the colorful new “instrument” for a fun music lesson. Kids can play and take turns to “name that tune”!

Detailed Instructions & Video Tutorial ->  Musical Jars Science Experiment

Viscosity of Liquids Science Experiment

fun cool science experiments at home

Viscosity may be a confusing term for kids at first, but this super easy experiment can help them see viscosity in action!

With marbles, clear jars, and a few household materials, kids will make predictions, record data, and compare the results while they test high and low density liquids.

Detailed Instructions & Video Tutorial ->   Viscosity Science Experiment

Floating Egg Science Experiment

Floating Egg Science Experiment

Can a solid egg float? Kids can find the answer and understand why with this quick science experiment. 

Discover just how easy it can be to make a raw egg float while testing the laws of density. We’ve included additional ideas to try so kids can make predictions and test the concept further.

Detailed Instructions & Video Tutorial ->   Floating Egg Science Experiment

Paper Towel Dry Under Water Experiment

fun cool science experiments at home

Is it possible to keep a paper towel dry even when submerging it under water? The answer is a surprising “yes,” if you use science to help!

Start with the properties of your materials, make a prediction, then explore matter, density, volume, and more.

Detailed Instructions & Video Tutorial ->   Paper Towel Dry Under Water Experiment

Mixing Oil & Water Science Experiment

fun cool science experiments at home

This simple experiment for kids helps them better understand density and the changes that happen when adding an emulsifier to the mix. 

Detailed Instructions & Video Tutorial ->   Mixing Oil & Water Experiment

Will it Float or Sink Science Experiment

Will it sink or will it float? This fun experiment challenges what students think they know about household items!

Students record their hypothesis for each item then test it to compare what they think will happen against their observations.

Detailed Instructions & Video Tutorial -> Float or Sink Science Experiment

Water Temperature Science Experiment

fun cool science experiments at home

What does thermal energy look like? In this easy science experiment, kids are able to see thermal energy as they explore the concept in action.

With clear jars and food coloring, students can quickly see how molecules move differently through hot and cold water.

Detailed Instructions & Video Tutorial -> Water Temperature Science Experiment

Balloon Blow-up Science Experiment

Balloon Blow Up Science Experiment

Kids will discover how matter reacts when heated and cooled as they watch with surprise as baking soda and vinegar blow the balloon up before their eyes.

Detailed Instructions & Video Tutorial -> Balloon Blow-up Science Experiment

Floating Ping Pong Ball Science Experiment

fun cool science experiments at home

Kids will giggle with joy with this super easy experiment. With only a ping pong ball and a hair dryer, students will have a great time while exploring Bernoulli’s Principle in action. 

We’ve included additional ideas to further explore the concept with different objects and observe the change in results.

Detailed Instructions & Video Tutorial -> Floating Ping Pong Ball Science Experiment

Hair Stand on End Science Experiment

fun cool science experiments at home

It’s especially fun for those who’ve never seen static electricity in action before!

Detailed Instructions & Video Tutorial -> Hair Stand on End Science Experiment

Oil Bubbles in Water Science Experiment

fun cool science experiments at home

Kids explore density and experience some chemistry when creating oil bubbles in water with everyday household items.

This experiment is particularly fun when kids see that they’ve made what looks like a lava lamp!

Detailed Instructions & Video Tutorial ->  Oil Bubbles in Water Science Experiment

Color Changing Water Science Experiment

fun cool science experiments at home

Kids will be surprised as they watch a new color being “created” without mixing! Using only a clear bowl and glass, some food coloring, and water, this super easy science experiment is quick and easy with a huge wow factor. 

Try it with yellow and blue to follow along with our demonstration video then try different primary color combinations and explore the results.

Detailed Instructions & Video Tutorial ->  Color Changing Water Science Experiment

Magnetic Paper Clip Chain Science Experiment

fun cool science experiments at home

It may seem a bit like magic but it’s actually science! It’s not hard to capture your kids’ attention with this quick and easy science experiment as they watch paper clips “stick” together and form a chain!

Perfect for younger children, the experiment only takes a few minutes and is a fun way to explore the concept of magnetic transference.

Detailed Instructions & Video Tutorial ->  Magnetic Paper Clip Chain Science Experiment

Is it Magnetic Science Experiment

With only a magnet and a few household items, kids will make and record their predictions, test and observe, then compare what they think is magnetic against the results.

Simple and quick, but some of the results may surprise your students!

Cloud in a Jar Experiment

fun cool science experiments at home

This simple experiment only requires a few materials but really holds student attention as a cloud forms before their eyes!

Kids will learn new weather vocabulary as they explore how physical changes and reactions happen as clouds begin to take form. We’ve also included a helpful chart on the types of clouds.

Detailed Instructions & Video Tutorial ->  Cloud in a Jar Science Experiment

Magic Milk Science Experiment

fun cool science experiments at home

Create a dancing rainbow of colors with this easy science experiment for kids!

Using only a few ordinary kitchen items, your students can create a color explosion in ordinary milk when they add our special ingredient. (Hint: The special ingredient (soap!) includes hydrophilic and hydrophobic molecules that make the magic happen!)

Detailed Instructions & Video Tutorial ->  Magic Milk Science Experiment

Walking Water Science Experiment

Walking Water Science Experiment

Water can’t really walk upwards against gravity, but this cool science experiment makes it seem like it can! 

Kids are able to see the capillary action process and learn how attraction and adhesive forces in action allow water to move out of one glass into another. 

Detailed Instructions & Video Tutorial -> Walking Water Science Experiment

Light Refraction Science Experiment

Light Refraction Science Experiment

The results of this easy science experiment are so amazing, it makes kids (and adults) think it must be magic!

Young scientists watch in surprise while they see an arrow change directions instantly. Investigating refraction couldn’t be more fun!

Detailed Instructions & Video Tutorial -> Light Refraction Science Experiment

Dancing Raisins Experiment

Dancing Raisins Science Experiment - Step (3)

Learn about the reactions of buoyancy and density in this simple science activity for kids. 

They may not need dancing shoes, but give them a glass of soda pop and the raisins in this fun experiment love to dance!

Detailed Instructions & Video Tutorial -> Dancing Raisins Science Experiment

See Sound Experiment

How to See Sound Science Experiment

Kids love this experiment because they are encouraged to drum loudly so they can “see” sound waves in action!

Detailed Instructions & Video Tutorial -> See Sound Science Experiment

Elephant Toothpaste Science Experiment

fun cool science experiments at home

Grab some giant brushes and get ready to make elephant toothpaste! Although you might not be able to get an elephant excited by this super easy experiment, kids love it!

The impressive and quick results created by the chemical reaction and the heat released in the process makes an abundant amount of fun and colorful foam!

Detailed Instructions & Video Tutorial -> Elephant Toothpaste Science Experiment

Upside Down Glass of Water Science Experiment

Upside Down Water Glass Science Experiment

We all know what happens when we turn a glass of water upside down, but what if I told you you can do it without the water spilling out?

The experiment only requires a few common items and you’ll be amazed by the results of air pressure in action!

Detailed Instructions & Video Tutorial -> Upside Down Glass of Water Science Experiment

Pick up Ball with a Jar Science Experiment

fun cool science experiments at home

It almost seems like magic but with the help of science, you can pick up a ball with an open jar!

Instead of magic, this easy science activity uses centripetal force and practice to do what seems like the impossible. 

Detailed Instructions & Video Tutorial -> Pick up Ball with a Jar Experiment

Will It Melt Science Experiment

Can you guess which items will melt? This easy outside experiment challenges what students think they know about the effects of the sun.

Pepper Move Science Experiment

Pepper Move Science Experiment

Can you make pepper move and zoom away with just a light touch of your finger? With science you can!

This experiment only takes a few quick minutes from beginning to end, but the reaction caused by surface tension makes kids want to do it over and over. 

Detailed Instructions & Video Tutorial ->  Pepper Move Science Experiment

Crush a Plastic Bottle Science Experiment

fun cool science experiments at home

Go for it, crush that bottle, but don’t touch it! Although it usually can’t be seen or touched, air pressure is pushing against all surfaces at all times.

With this easy science activity kids can see air pressure at work when they watch a bottle crushes itself!

Detailed Instructions & Video Tutorial -> Crush a Plastic Bottle Science Experiment

Egg in Vinegar Science Experiment

fun cool science experiments at home

This vinegar science experiment will have your eggs and kids bouncing (with excitement!) before you know it!

Kids can watch and explore the results of chemical reactions as the egg changes from something that seems solid into what feels like something bouncy!

Detailed Instructions & Video Tutorial -> Egg in Vinegar Science Experiment

Straw Through a Potato Science Experiment

fun cool science experiments at home

Can you make a normal plastic straw go into a raw, solid potato? It seems like something impossible, but science can easily make it possible!

Pick your potatoes then let kids try their strength as they explore air pressure with this super easy experiment.

Detailed Instructions & Video Tutorial -> Straw Through a Potato Science Experiment

Rainbow in a Jar Science Experiment

fun cool science experiments at home

With only a few household items, they’ll explore mass, volume, and density with every color layer!

Detailed Instructions & Video Tutorial -> Rainbow in a Jar Experiment

Tornado in a Bottle Science Experiment

fun cool science experiments at home

Kids can have fun while learning more about centripetal force with this fun experiment.

With a little muscle and science, kids watch with amazement as they create their own glitter cyclone in a bottle as the centripetal force vortex appears.

Detailed Instructions & Video Tutorial -> Tornado in a Bottle Science Experiment

Why Doesn’t the Water Leak Science Experiment

Water Doesn't Leak Science Experiment

Can you poke holes in a plastic bag full of water without the water leaking out? With this super easy science activity you can!

Kids are stunned as they learn about polymers and how they can do what seems to be impossible.

Detailed Instructions & Video Tutorial -> Why Doesn’t the Water Leak Science Experiment

Use a Bottle to Blow-up a Balloon Experiment

Use a Bottle to Blow-up a Balloon Science Experiment

Is it possible to blow up a balloon with only water and science? 

In this super easy experiment, kids learn more about how matter behaves as they watch a balloon inflate and deflate as a result of matter being heated and cooled.

Detailed Instructions & Video Tutorial -> Use a Bottle to Blow-up a Balloon Experiment

Orange Float Science Experiment

fun cool science experiments at home

Kids explore buoyancy as they learn about and test density in this sink or float science activity.

While it only takes a few minutes, this super easy experiment invites kids to predict what they think will happen then discuss why the heavier orange floats!

Detailed Instructions & Video Tutorial -> Orange Float Science Experiment

Pick up Ice with String Science Experiment

fun cool science experiments at home

With only a few household items, kids learn about freezing temperatures and the results they create in saltwater versus freshwater.

Detailed Instructions & Video Tutorial -> Pick Up Ice with String Science Experiment

Color Changing Walking Water Experiment

fun cool science experiments at home

Using the concepts explored in our popular Walking Water Science Experiment, kids will see color walk from one glass to another and change colors as it goes!

The quick experiment seems to defy gravity like magic, but don’t worry, kids can find out how science makes it work!

Detailed Instructions & Video Tutorial -> Color Changing Walking Water Experiment

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32 Cool Science Experiments for Kids (that are Fun AND Easy!)

fun cool science experiments at home

Do you ever want to do science experiments at home with your kids, but you’re not quite sure what to do? Not just any old kitchen science experiment will do – you want something cooler than vinegar + bicarb soda! But, you also want something simple and easy to do – because no-one wants a huge mess from their kids doing crazy science experiments at home!

We understand, and that’s why the writing team here at STEM Geek has put our heads together to come up with the most awesome at-home science experiments for kids! As science enthusiasts and educators, we also wanted to make sure that these are genuine science learning opportunities. So not only are they captivating for the kids, but we also emphasize what questions can be asked as kids explore and apply the scientific method! Plus, we’ve arranged them according to how much time they take: up to 1 hour, 1 to several hours, and long-term.

Related Post: Ultimate Boredom Buster: 101 Things To Do When Kids Are Bored

Science Experiments at Home that take Less than 1 Hour

1. tie-dye milk.

Sounds delicious, right? You’re not actually drinking it, but instead watching science magic happens when you combine dish soap with milk and food coloring. This is a very pretty experiment that draws the focus and mind into what’s happening on the plate, and all because of a little chemistry with everyday items. Well, food dye may not be an everyday item, but it might be after your kids get a hold of this!

So, what’s going on here, scientifically-speaking? Milk is made up of two major ingredients: water and fat. When you add a little dish soap, it bonds with the fat in the milk so strongly that it literally pushes the food coloring and water away from the cotton ball. On a microscopic level, the dish soap is wandering around the milk, which causes the colors to swirl and swirl.

Questions to ask beforehand:

  • Before knowing what will happen to the food coloring, ask the kids what they think will happen when dish soap mixes with milk.
  • Since the major catalyst is fat in the milk, what would happen if you used other types of milk: Skim milk, soy milk, coconut milk?

You’ll need:

  • Round cake pan or plate with high edges
  • Cotton ball (some tutorials show cotton swabs)
  • Dish detergent
  • Different colors of food dye (three or four should do)

Procedure/Instructions:

  • Fill the pan halfway with milk.
  • Drip one color of food dye in one section of the plate away from the center. Four to five drops works and later you can play around with more or less. Do the same for the rest of the colors around the plate.
  • Soak the cotton ball in dish detergent, and when you’re ready for action, place the cotton ball into the center of the pan.
  • Watch the colors racing around, creating a psychedelic tie-dye effect!
  • You can add more cotton balls throughout the dish to see more action.
  • If some food coloring hugs the wall of the plate, take a cotton swab dipped in dish detergent and place it into the food coloring. It will move away!

2. Saturn’s Glowing Rings

using a flashlight for a Saturn’s Glowing Rings experiment

I don’t know about you, but I love everything about space. This experiment shows you how Saturn’s rings are made of rocks and ice chunks even though they look so smooth in pictures. You’ll also see why there are big gaps in the rings. Younger kids take delight in using a flashlight and sprinkling powder, while older kids can get more specific with questions about Saturn and how the rocks and ice stay in orbit.

  • Do Saturn’s rings give off their own light?
  • Why are some rocks and ice chunks more lit up than others?
  • Compare the results of light sprinkles to thicker sprinkles.
  • Strong flashlight
  • Powder (flour, baby powder, etc) in a shaker
  • Very dark room
  • Darken a room and set the flashlight on the edge of a table or counter, pointing it at a blank wall. Lay the newspaper on the floor between the flashlight and the wall.
  • Turn on the flashlight and notice where the light comes from the flashlight and where it hits the wall. You should only see the light from these two places and not from the space between them. This shows you that the light travels through the air without being seen until it hits the wall. The light represents the sun’s light.
  • Now to see how Saturn’s rings glow: Hold the powder shaker and sprinkle some powder over the beam of light where you know the light is traveling. You’ll notice the powder lights up and sparkles in the beam of light. The powder shows in glowing clumps, just like in Saturn’s rings.

3. Breaking Down Colors

We all know that the fun, vibrant colors we see in our lives are created by mixing the basic red, yellow, and blue. In this experiment, you and your child will learn which colors make up those fun shades they have in their art supplies. This also teaches some basic chemistry and uses materials you already have at home. It can be done very simply and expanded to create a large-scale investigation if you love it.

  • Which colors separate out first?
  • Is the same order for each test?
  • Which colors make up the original shade?
  • Do the different types of color (pen, pencil, paint) separate in the same way or differently?
  • Are some separated in a shorter space are the colors the same mixture?
  • Coffee filters
  • Color sources (markers, colored pencils, paint, etc.)
  • A plain pencil
  • To complete this experiment, cut the coffee filters into strips, mark one end with a line the same distance from the bottom on each strip.
  • Color in each strip (between the bottom and line) with your colors, and write at the top what the color and source are (e.g., purple marker).
  • Place each strip in a glass and help it to stand up by folding the top over a pencil (a chopstick, table knife, or any long narrow object will also work) so that it stands up in the glass.
  • Fill the glass up to the top of your colored block, and wait. The water will move up the filter, and the colors will separate out as it goes.
  • Remove the strip once the water gets near the top of the strip to stop the experiment. 

To make this a true experiment, we recommend testing multiple colors and using markers, colored pencils, and paint (as some starting examples). You could test the same colors from each type of art supply to investigate whether they all use the same mix of basic colors to create the same end product.

This post has a nice full description of the methods if you need more detail.

4. Water Xylophone

Water Xylophone - let kids experiment with sound and liquids

This simple experiment will teach your child about sound and pitch using glasses, water, and something to act as a mallet. Don’t let the simplicity deceive you, there are a lot of ways to experiment and learn through this process, and it also brings in an element of music that makes it interesting and engaging.

  • Do you think more water makes the sound higher or lower in pitch?
  • How do you think the shape or size of the glass will affect the sound?
  • How should we arrange the glasses to play a simple song?
  • Do you think this will work with a plastic cup, why or why not?
  • Some glasses
  • Something wood to act as a mallet (we recommend wood so you don’t break the glasses!)
  • A great way to start is with glasses that are the same size, shape, and material, and filling them with different amounts of water.
  • Have your child use the mallet to test how the amount of water affects the sound.
  • From there, it’s a really simple extension to use different sized and shaped glasses (or any glass vessel like jars and bowls) to experiment with how the shape, size, and amount of water in the glass affect the tone. 

To take this one further and really bring in the musical component, you and your child could work out a simple song and create the right tones to play it. If you or your child are musical, you could get very elaborate and creative (try googling harry potter or star wars theme songs on glasses, there are so many options that I couldn’t even choose one)!

5. Ultimate Bottle Flipping

Ah, bottle flipping. The fad that kids can’t get enough of, but parents are well and truly over. The constant thud of semi-filled water bottles being tossed (and hopefully landing upright) is guaranteed to send parents around the twist!

If you can stand it for a bit longer though, there’s a lot of STEM knowledge to be gained in this bottle flipping experiment. As we know, the aim of bottle flipping is to flip a partially filled water bottle underhand and get it to land upright.

In this experiment, kids will learn the importance of observing a result multiple times before changing a variable (the amount of water in the bottle).

  • How much water should you put in the bottle?
  • What is the ideal amount of liquid to get the perfect flip?
  • What should be the ideal amount of water?
  • Was their prediction correct?
  • Why do they think the amount of water affects the chances of landing the bottle?
  • A plastic water bottle
  • Measuring jug
  • Paper to record results
  • Get the kids to start by flipping their bottle with no water in it at all. Kidspot recommends flipping it 50 times for each step, but you could do less if you need to.
  • Try it again with 50ml of water.
  • Keep adding more water until the bottle is full.

If they’re keen, you could try other types or sizes of bottles, or even try different liquids to see if that affects the results!

6. Rainbow in a Jar

Rainbow in a Jar - a kitchen chemistry experiment for kids

This simple science experiment is not only very visually appealing, but it’s also a great way to learn about the density of liquids. Warning though, this one could get messy so make sure kids are in some old clothes and you might want to take it outside! I like this experiment because you’ll probably have most of the materials in your kitchen already!

  • Which liquids they think will be heaviest?
  • Which ones will be lightest?
  • Why do they think that?
  • A glass jar
  • Food coloring
  • Various liquids like honey, corn syrup, dishwashing liquid, olive oil, rubbing alcohol and water.
  • Use the food coloring to make all your liquids a different color. A dropper comes in handy here, but if you don’t have one you can manage without.
  • Slowly add each liquid to the jar (pouring into the middle of the jar is best).
  • Soon, you’ll have different layers of colored liquid forming your very own rainbow in a jar.

You might even get them to draw a diagram of what they think the jar will look like at the end. They can compare this with the experiment results to see if their prediction was correct.

It might also help to talk to your kids first about what density is and how materials are all made of different amounts of molecules. The more molecules a liquid has, the heavier it will be. Playdough to Plato demonstrates a great way of introducing this concept using marbles. 

7. Write Your Own Secret Messages! 

We love science experiments that are made up primarily of supplies that you likely already have in your home.

  • Why do you think this will work?
  • Which liquid do you think will make the best secret message?
  • Why do people write secret messages?
  • Juice (eg. Lemon)
  • Lamp (or anything else that can be used as a heat source)
  • In order to complete this experiment, you’ll need to gather all of your supplies along with a piece of paper, some q-tips, and a lamp or other item that you can use as a heat source.
  • Next, you’ll mix your lemon juice with a slight amount of water. 
  • Using your q-tip, use the mixture you’ve created to begin writing your message. 
  • Allow it to dry. 
  • Once dry, apply heat to it in order to get your message to appear.

Extend this project by attempting to write with a juice and water mixture, a milk and water mixture, or any other variation of the liquids we listed as necessary supplies!

8. Create Your Own Butterfly

Create Your Own Butterfly and learn about capillary action

Your little ones will love practicing their color mixing by creating their very own coffee filter butterflies. Hang them in the windows of your home to spread some cheer and to watch the sun flow through their beautiful wings! 

  • What colors can mix together to make other colors?
  • How do butterflies fly?
  • What do you think will happen when we add water to the markers?
  • Water spray bottle
  • Allow your child to draw on the coffee filter to their heart’s content.
  • Spray it with water and allow the colors to mix together.
  • Allow it to dry thoroughly.
  • Once dry, fold it like a fan and then clip it in the middle.

Ta-da, you’ve created a beautiful butterfly! 

9. Make A Duck Call

Give your family an excuse to head outdoors by allowing your children to craft their own duck calls. Test them out at a local pond and see if you can get the ducks to come closer to you for a healthy veggie snack! 

  • Do you think ducks will be able to hear us with this?
  • What other materials do you think could make this noise?
  • How is what we have created similar to a duck’s beak?
  • Plastic straw
  • Push down on the straw to flatten one end and then cut the flattened end into a point.
  • Flatten out your straw and then blow into it.
  • Feel free to experiment with different amounts of flattening and different point shapes to see how you can adjust the sound.
  • When finished, take your duck call into the wild to test it out.

10. Make Ivory Soap Boats

Make Ivory Soap Boats - a home science experiment that is fun

Did you ever carve items out of soap at camp when you were a child? Give your child the same opportunity. Soap can be carved using safe items, like plastic knives. 

  • Why are we able to carve soap so easily?
  • Do you think our boats float?
  • Why do you think they float or sink?
  • Carving tools (for kids)
  • Allow your child to express their creative side by carving their boat out of soap. 
  • Once they have finished carving it, allow them to test them out in the bathtub. . Extend their learning by discussing density with them–the soap floats because it is less dense than the water.

11. Make Your Own Quicksand 

As John Mullaney famously said, “I thought quicksand would be a much bigger problem in my adult life than it would have turned out.” For some reason, quicksand permeates children’s adventure stories – and their imaginations! 

  • Where can we find quicksand in real life?
  • How do you think quicksand works?
  • What do you think we will need to make our own quicksand?
  • Cornflower (one cup)
  • Water (half cup)
  • A container
  • To make your quicksand, you’ll need to mix the cornflour and water. 
  • Be sure to stir slowly in order to demonstrate – if you stir too quickly, it will become hard and you won’t be able to see it function the way it should!

12. Make Your Own Lava Lamp

Make Your Own Lava Lamp - a cool science experiment

We’ve tried this one in our classrooms, and trust us, our kids go wild year after year. Kids love making something that they can use as home decoration, and they love how easy it is to show new people – this is the experiment that lives on and on! 

  • How do you think density is involved in this experiment?
  • Why don’t the water and oil mix?
  • Why can’t we shake our lava lamps?
  • Clear Plastic Bottle
  • Vegetable Oil
  • Food Coloring
  • Alka-Seltzer
  • Pour water into the plastic bottle until it is approximately one quarter full. 
  • Then pour vegetable oil in until the bottle is almost completely filled. 
  • Allow some time for the oil and water to separate. 
  • It is important that your children do not shake the bottle in this step. It will extend the experiment for no other reason than you waiting for the bubbles to dissipate. 
  • Add as much food coloring as your child deems fit and then drop a piece of Alka-seltzer tablet into the bottle for the lava lamp fun to begin.

13. Guess the Smell

This one will take a little more prep work, but it’s a great touchstone for your children to begin discussing one of their five senses: the sense of smell! 

  • What are examples of times we use our sense of smell?
  • What other senses do we have?
  • If you could only use one sense for the rest of your life, which one?
  • Plastic Cups
  • Smells (eg. coffee, cinnamon, vanilla, lemon juice)
  • Place a variety of common smells in small plastic cups. We like to use coffee, cinnamon, vanilla, and lemon juice. 
  • Pour these in and place tin foil securely over the top of the cup. 
  • Poke small holes in the top of the foil. 
  • Secure the foil with tape (on the sides, not over the holes). 
  • Allow your children to guess the smells and record their findings on paper.

Home Science Experiments that take 1 to Several Hours

14. mangrove bioshield  .

Ecologists and conservationists are pushing for more regulations in building and saving mangrove forests around coastal areas. The reason is represented in this STEM activity. The trees act as a mangrove BioShield (bio = life, shield = protection), showing how natural obstacles can prevent critical damage from marine natural disasters such as tsunamis.

The mangrove BioShield can be for older elementary kids through to high school. Obviously, the younger they are, the more parent involvement. This experiment is done twice to show the effects of having and not having a BioShield. The first part uses little to no trees, and the second uses a forest of trees and rocks.

  • What will happen in a tsunami if the village is without a BioShield? And the village with a BioShield?
  • Would a BioShield help with hurricanes?
  • Would you want to encourage people to save manatee forests if they are beneficial?
  • Medium to large clear, plastic container
  • Newspaper – wad into balls, then cover half of the bottom container – this help to keep the ground sturdy
  • Mud – cover the newspaper and press it in to form a slope down to the empty side of the container. The top side should be flattened for the cardboard houses, then it slopes down into the empty half of the container.
  • Cardboard houses (use the bottoms of milk cartons for the house and popsicle sticks for the roofs, place houses on the mud towards the top of the high slope
  • Model trees or leafy stems from plants – Different amounts for activity 1 and activity 2
  • Several small rocks
  • Cardboard – long enough to fit across the container and tall enough to hold it from out of the water
  • Water – enough to go halfway up the slope

A tsunami without the mangrove forest – insert only one or two trees down the slope. Place the cardboard piece into the water end of the container and move back and forth to create waves. Notice how easy it is for the water to destroy the village you’ve created.

Repeat the process of constructing the village, but this time insert a lot of trees down the slope to where the water meets the mud. They need to be deeply rooted like mangroves, and I’ve found that aquarium plants work well for this reason. Place the rocks within the mangrove forest and in front of the trees. Add a little bit more water. Insert the cardboard again and move it back and forth to create waves.  

15. A Greater Crater

When you look at the night sky and see the moon, one of the first things you notice is its craters. The moon is completely covered in them, and some are so large we can see them from Earth. Meteorites often make the craters that we see when they hit the surface, but it makes us wonder why some craters are so much bigger than others.

This experiment will help you to investigate one of the main reasons why craters come in different sizes.

  • What causes craters?
  • How big do the meteorites have to be to make a crater?
  • What is it about the meteorite that causes the size of the crater?
  • Paper to record your results
  • Flat floor surface for the experiment, large enough for the newspaper to cover
  • Shallow metal pan at least 2 inches deep
  • Flour to fill 2 inches of the pan
  • ¼ cup hot chocolate powder
  • Mesh strainer or flour sifter
  • Large marble (and others of varying sizes if comparing results)
  • Metric ruler
  • Tongs or long tweezers
  • Pour the flour into the pan until it reaches 2 inches. Place the pan on top of the newspaper on a level surface.
  • Sift a layer of hot chocolate powder over the flour (this is so you can better see the rays and other features of the craters).
  • You will be dropping your marble from three different heights, then comparing the sizes of the craters. Measure the diameter (side to side) of the marble and record this on your paper as Marble 1. Hypothesize how large the crater will be and write that next to the diameter of Marble 1.
  • Stand next to your pan and hold the marble at knee height above the flour. Drop the marble (do not throw it, just let it fall from your fingers) into the flour and study the shape of the crater. Look for a rim around the crater or any rays coming from the edges.
  • Measure across the widest part of your crater, from rim to rim and record on your data sheet as Marble 1 – Knee Height – Width or something similar. You can also draw a picture of your results.
  • Very gently use the tongs or long tweezers to remove the marble without destroying the crater.
  • Repeat this procedure from waist height, shoulder height, top of head height. Make sure you aim in different parts of the flour so you don’t land on top of another crater. Record all of your results as the different heights you’re using.
  • Compare your results.
  • You can try again with a different sized marble as “Marble 2” to compare those results with each height as done with Marble 1.

Perhaps now, you’ll look at the moon a little differently!

16. Rube Goldberg Chain Reaction Machine

We’ve all seen them, some pretty far-out there chain reaction machines to complete simple tasks, usually in movies. But they are real , and are becoming even more popular now that we’re all stuck at home for a while. This is a fun way to explore physics with stuff you have at home.

Ask your child to decide what the end goal is (e.g. get the ball into the cup), and ask them to think about creative ways to make it get there. Working together, you can start with small pieces of a circuit to find out how your ball reacts to the set-up, and grow it from there. You can even refer to this video for more ideas:

  • What will happen when the ball bounces off of this wall?
  • How will these dominoes change the speed of the ball?
  • What can we use to make sure that the ball goes in the direction we want it to at this point?
  • What should we put here to get the best bounce? 
  • Paper towel
  • Toilet paper tubes
  • Fixed objects like walls or furniture
  • Any other toys and materials that can be used to build your circuit

To make this a true experiment, it needs to include more than a one-off demonstration, and there are a lot of ways to accomplish this.

  • Set up parallel courses and use different sized or weighted balls to go through the circuit.
  • Set up one elaborate circuit and use different objects one at a time.
  • Set up circuits in different ways to see how different set-ups affect your end goal.

Another experimental component is the process used to create a circuit that reaches your end goal ( like this video about getting the ball into the cup, but you could come up with lots of other endpoints!). Along the way, you and your child get a lot of time to learn about momentum, velocity, friction, energy transfer, and interference (e.g., the cat). 

17. Melting

Melting ice - a very easy kitchen science experiment for kids

This is a simple and fun experiment that can be set up in a short time and then fill-up your day with observations and new experiments. Using only things you already have at home, you can set-up an engaging experiment with your kids!

Ice melts at different rates depending on a variety of factors including temperature, pressure, and if there are impurities (think salt, sugar, dirt) in the ice or touching the ice. There is a lot of opportunities to get creative and do the experiment in multiple ways, keeping your kids engaged and developing their investigative, experimental, and critical thinking skills.

  • Which ice melts the fastest, slowest, and if they have any guesses about why?
  • What other ice-melting experiments they think would be fun: Using different temperature liquids? Using different amounts of ice? Different sized cups?
  • Lots of ice
  • Several matching cups (i.e., they are the same size, shape, and color)
  • Measuring cups
  • A variety of liquids for the test
  • Paper for writing down observations
  • Measure the same amount of ice and place it in each cup.
  • M easure equal amounts of each liquid and place them in the cups: try to complete this part quickly so that the ice in each cup is in liquid for as close the same amount of time as possible.
  • Set up your cups in a place that is easy for your child to watch and observe.
  • Ask them to check in at regular intervals (every 15 minutes, every hour) and record or talk to you about their observations.

Other potential experimental examples:

  • Using different liquids to test if they affect melting time;
  • Using the same liquid and placing ice in different locations to test what conditions throughout your home affect melting;
  • Test if different amounts of ice melt at different rates;
  • Test if different kinds of cups change melting time.

There are endless possibilities for you to come up with new ways to complete these simple experiments. You get the idea. Explore more!

18. Breathing Leaves

Science experiments don’t get much more simple than this one!  It’s effective though and kids will enjoy watching their leaf ‘breathe’. Learning about plant science is often tricky because it can seem a bit abstract. This experiment allows kids to see the process of plants making oxygen right before their eyes!

A question to ask beforehand:

  • What do you think will happen if we leave it for a few hours?
  • A fresh leaf from a tree
  • A bowl of water
  • Pluck a fresh leaf from a tree and place it in a bowl of water.
  • Use a rock to weigh it down and leave the experiment out in the sun.
  • Have your kids predict what they think they will see when they come back in a few hours (they can write their prediction down or draw a diagram if that’s more their style).
  • After a few hours, your kids will see lots of tiny little bubbles on the edge of the leaf and in the glass bowl of water (use a magnifying glass to get a closer look if you have one).

So, what’s happening here? Leaves take in carbon dioxide and convert it to oxygen during photosynthesis. The bubbles you can see are the leaf releasing the oxygen it’s created. You could explain to your kids how trees and plants make the oxygen we need to breathe. Kids Fun Science explains this experiment in more detail and suggests taking it further by leaving the plant for a longer period of time (do you see more or fewer bubbles?) or placing a leaf in a dark area to see what difference that makes!

19. How Does Sunscreen Work?

Scientific Method - How Does Sunscreen Work?

If there’s one thing I know, it’s that kids hate wearing sunscreen! Trying to get it on them is like wrestling a crocodile. Maybe if they knew how sunscreen worked they’d understand how important it is to wear it when they’re out in the sun (and be slightly more cooperative when we’re lathering it over their little faces). This is a simple experiment that shows kids the difference wearing sunscreen will make to their skin.

  • What do they observe when they come back?
  • Why do they think one side faded and the other not?
  • A piece of colored cardboard (a dark color would be best)
  • Your usual bottle of sunscreen
  • Have your kids smear the sunscreen over one part of the cardboard and leave the other part clear.
  • Kids can then predict what they think will happen when they return to the experiment after a few hours.
  • Talk to them about how the sun’s UV radiation is absorbed by the sunscreen so it can’t get through to damage the cardboard.

You could even take it further by trying different kinds of sunscreen or leaving your cardboard out during different times of the day.

20. Make A Rubber Egg

Imagine a world in which eggs can be used like bouncy balls. Well, with a couple of home supplies and a little bit of science, you can live in that world. Your child will be dazzled as they remove eggshells from eggs while leaving the insides intact. 

  • Is vinegar an acid or a base?
  • Is there another substance that could do this?
  • Simply leave the egg in the vinegar for a few hours and wait to see what happens. Because of the transformative nature of this experiment, it lends itself to science journaling. 
  • Consider having your kiddos draw before and after pictures of the eggs in order to track their journeys. 

21. Flying Tea Bags

Flying Tea Bags is an easy kitchen science experiment

Nothing will get your kids’ attention faster than telling them that you are going to spend some time creating something that will fly. However, because this experiment will involve fire, please ensure that you select a time in which you will be able to provide ample adult supervision. 

  • How do we stay safe with fire?
  • How do we make sure we don’t damage the surface we are working on?
  • Why do you think the tea bag will fly?
  • Single Serving Tea Bags
  • A Small Bowl
  • A Non-Flammable Work Surface
  • First, open the tea bags and unfold them. 
  • Empty the leaves from the bag. 
  • Stand the tea bags up on your surface and light the top of each bag on fire. 

As they begin to burn, they will float into the sky! 

22. Make Wax Paper Lanterns

Your children will love the chance to display their fantastic art skills by creating these paper lanterns. If you want to add a culture lesson, have your children research German’s St. Martin’s Day and learn about why children parade through the streets with lanterns. We promise there’s a good moral story involved here! 

  • When could we use lanterns?
  • What safety considerations do we need to use in this project?
  • Why can we see the light through the wax paper?
  • Popsicle Sticks
  • To begin, tear a ten-inch piece of wax paper off of the roll and cut it in half. 
  • After that, fold each piece in half. 
  • Allow your child to color their image on top of the wax paper. (This is a great place for an impromptu lesson in color mixing). 
  • Fold the wax paper and iron it (consider something in between the crayon mess and the iron you use on your clothes). 
  • Finally, glue the craft sticks into squares, add the wax paper, and turn it into a cube.

Voila, you’ve created your own lantern!

23. Create an Insect Habitat

Alright, this one isn’t for the faint of heart. Draw up your courage and send your child into the backyard to collect all of the creepy crawlies they’d like to.

Create an Insect Habitat at Home

Now you have a home for them. Better yet, you can keep your child entertained for hours as they track the growth of their bug friends.

  • What do bugs need to survive?
  • What do bugs eat?
  • What is the difference between a need and a want?
  • Imagination
  • Find something that you’re willing to sacrifice to the bugs in order to create a habitat for them – we recommend a shadowbox so that your child can see inside, but a cardboard box will do just fine as well. 
  • Ensure that there is breathing room for the bugs. 
  • Create a habitat with sticks, bark, small rocks, dried leaves, and whatever else you can find.
  • If you’re willing to hang onto the habitat long enough, use it as an opportunity to talk about decomposition as the bugs begin to break down the twigs.

Long-Term Science Experiments at Home

24. crystal kingdom.

This is the oldest trick in the book, but it’s popular because it’s so effective, fun, and has great results. The only drawback to most crystal-growing recipes is that they take ages to grow, and to be quite honest this one is no exception. In fact, these crystals will take several days to grow but the end result is worth it. The reason is that this experiment involves growing a whole landscape of beautifully colored salt and bluing crystals. Here’s a video for visual reference: 

A few things to keep in mind: Allow for plenty of air circulation, preferably inside rather than outside. Ammonia is not necessary but does help in the process.

  • What will happen when you add ammonia?
  • Why does more salt and less liquid create faster crystallization?
  • What part does the bluing solution have in crystal growing?

(Answers can be found here )

  • Two bottles of bluing solution
  • Large tray/cookie sheets with sides
  • Measuring cup
  • Liquid watercolors
  • Eye droppers
  • Cut sponges into large pieces. Spread them out on the tray.
  • Measure out 1 cup of each of salt, water, and bluing and then gently mix together.
  • Evenly coat or sprinkle the mix over the sponges.
  • Add 1 cup of ammonia to the sponges.
  • Coat an extra 1 cup of salt on to the sponges.
  • By now you’ll see some crystals growing . Sprinkle the magic mix again: 1 cup each of salt, water, and bluing. You can pour the ingredients onto the tray instead of on top of the crystals to keep them from breaking. Don’t worry, more will grow!
  • Take an eyedropper, and drop a tablespoon of each liquid watercolor (undiluted) in different patterns over the sponges and crystals.
  • Take note of your garden and what the crystal formations look like. You can make a sketch in your notebook as a before and after. Ask questions and observe!
  • Observe how the crystals are bigger than before, and notice the colors aren’t as vibrant. Compare the differences in shapes, sizes, and colors.
  • If you want more crystals to grow, add a little more water, bluing, and salt.

25. Blow up a Balloon with Yeast

We are surrounded by science in action, but sometimes it is really difficult to see what is happening, especially when it is on a small-scale. When we make bread, yeast ‘eats’ the sugars in the food and creates CO2, giving bread its airy texture. This experiment lets you both visualize what happens when yeast consumes sugar and is a great set-up for an experiment that can be observed throughout the day.

Depending on your supplies and time, you could start with a demonstration and use that to think of other tests, or you could set up several parallel tests at the same time.

  • How quickly does the balloon filled with air?
  • When does it stop filling (at some point the yeast will run out of food and will stop making gas)?
  • Does the starting temperature affect the experiment?
  • Does the balloon fill faster in different places in your home (try especially for different air-temperatures, you could include an outside location)?
  • Some balloons
  • Blow up the balloon a few times before starting so that it’s loosened up a bit.
  • Fill the bottle with about 1 inch of warm water (heat is required to activate the yeast, but you could experiment with different temperatures), add the yeast and swirl to dissolve.
  • Add the sugar and swirl more.
  • Place the balloon over the opening to the bottle and wait. You should expect to see the balloon begin to inflate after around 20 minutes.
  • Continue checking and observing how much the balloon inflates throughout the day.

More example experimental setups include:

  • Do different temperatures – either with the water you start with or the air the yeast lives in – affect how quickly the balloon blows-up?
  • Does using 2x the yeast result in a balloon that is 2x bigger, or blows-up 2x faster?
  • Do different types of sugar (e.g., white sugar, honey, syrup, flour) affect how quickly the balloon blows up or how big it gets?

A sk your child to think of new experiments (you could prompt with some of the examples above, or ideas from this post ). 

26. Seed Germination

A really simple but fun multi-day experiment is germinating seeds under different conditions. This means finding some quick-sprouting seeds such as beans and putting them in different conditions to see how that affects germination (sprouting leaves and roots) and growth.

Seed Germination is an easy science experiment for kids

I love using seed experiments because they are inexpensive, simple, and leave a ton of room for creating your own unique experiment.

  • Which seed will sprout fastest?
  • Seeds (Beans, radishes, squashes, and many flowers sprout quickly from large seeds, making them good choices.)
  • Small pots or paper cups
  • Potting soil
  • Cloth or paper towel
  • Somewhere with good light
  • To get started, you’ll need some seeds – feel free to choose something you already have, if you’re a gardener you might have some seeds ready for the coming season and could spare a few – or find something online or at your local nursery.
  • Use small pots or paper cups and fill each with your growth material (we recommend a minimum of 3 for a useful comparison).
  • Fill one with potting soil, one with sand, and one with a cloth or paper towel.
  • Place them somewhere with good light, and add water.
  • Ask your child to predict which seed will sprout fastest, and make observations every day. If possible, make them around the same time each day.
  • Once you see growth, you can ask your child what they think caused any differences, and you can use that as a jumping-off point for more experiments

Additionally, you could:

  • Use one type of seed and different types of growth media: soil, paper towel, gravel, sand, water, etc.
  • You could use different seeds (beans, flowers, grass, herbs) and grow them under the same conditions (soil, water, sun exposure) to see how different plants grow differently.
  • You could see how different light conditions (by a window, in the basement, in a bright room away from a window, etc.) affect germination.

You could also extend each experiment by simply continuing to grow each seed to learn whether the different germination time affects long-term growth (you may want to re-pot everything in the soil for this to be effective, depending on the specifics of your initial experiment).

27. Colored Celery

Colored Celery is a simple science experiment for kids

It’s hard to imagine plants having little capillaries inside them that transport water and nutrients, but this experiment shows that in action. It’s easy to set up, but you’ll have to wait at least a day to see some results. Your kids will be able to see how transpiration takes place and plants absorb water from the soil all the way up into their leaves.

  • A few stalks of celery (celery works best for this because it’s a bit more visible, but you could also use flower stems)
  • Different food coloring
  • Place each stalk in a cup of colored water and make your predictions about what will happen.
  • After a day or so you’ll see the celery leaves becoming the color of the water they’re standing in.
  • Have your kids describe their observations (they can write down what they see or draw it if they prefer).
  • If you look at the base of the stem you’ll also see tiny little holes that the colored water is traveling through.

When you’re done with the experiment, make sure you snap the celery and look inside – you should be able to see the capillaries in action. For more ideas, Little Bins for Little Hands has got some great hints and tips for this experiment.

28. Moldy Bread

This experiment is an oldie, but a goodie! Kids love looking at disgusting things and this one will certainly come up with the goods. Not only will kids learn about how mold grows, but they might also take on some lessons about the importance of washing their hands!

You might want to check out the results of this experiment at Science Alert before you start to see if your stomach is up to it.

  • A few slices of bread
  • Some ziplock bags
  • Sticky little hands. 
  • Get a few slices of bread and lay them out on your kitchen bench.
  • Have your kids touch one piece of bread with dirty, unwashed hands.
  • They can wash their hands with soap and water and touch another slice, then do the same using hand sanitizer.
  • Leave one piece of bread untouched.
  • Place them all in clear, labeled ziplock bags and predict which one will grow the most mold.
  • Leave your bread slices for at least a week (it may take a bit longer, depending on the conditions where you live) and get the kids to record their observations.

You can also try wiping your bread slices on other surfaces to see what moldy results you get (their laptop or tablet is a great place to start)!

29. Sprouting Beans

Sprouting Beans experiment

Give your household a real survivalist feel by beginning an indoor garden. We recommend planting your beans in a clear cup so that your children can be privy to all of the processes during the plant’s journey.

  • How does a plant grow?
  • What does germination mean?
  • What is in season to grow in our area now?
  • Unprocessed Beans
  • If you’d like your child to see every step of the process, consider placing the beans inside of a damp paper towel inside of a ziplock. 
  • You can wait, see the germinated seed together, and then plant it inside of a small cup.
  • Once inside the cup, watch it grow.

Extend your work by planting various beans and altering the growth conditions in order see what makes your beans grow best! 

30. Begin Composting

Begin your “go green” resolutions by teaching your child the value of composting! Best of all, once the science experiment is done, your family will have a recycling process that will last your entire lifetimes. 

  • Why is composting important?
  • How else can our household go green?
  • Why do we need a foundation layer for compost?
  • Compost Bin
  • Organic Material
  • First, create a compost bin. You can purchase one or build one out of wood. 
  • To begin your composting, you’ll need even amounts of brown materials (think shredded paper, dryer lint, etc.) and green materials (think fruit and vegetable waste, lawn clippings, etc.). 
  • If you’re really feeling fancy, throw some earthworms in there.

For days to come, your family will be able to discuss what can and cannot be broken down by the decomposers inside of the compost bin. Never-ending science! 

31. Turn Grapes Into Raisins

Turn Grapes Into Raisins for an at-home science experiment

Your kids may or may not eat raising – but we can guarantee you, they’ve likely never considered the option of creating their own! 

  • What other snacks can we make with science?
  • Should we ever eat our experiments?
  • How does this work?
  • For this experiment, you’ll need grapes. (Really, that’s it!) 

Leave your grapes somewhere where they will not be disturbed and use this as an opportunity for your children to journal the changes in the grapes from day to day. Believe it or not, this type of sequential journaling is a valuable literacy skill! 

32. DIY Science Experiment

The best science experiment your child can engage in is the one they create themselves! Begin brainstorming a list of questions and let the world be their oyster as they plan and carry out their own experiments. Some of our favorite brainstorming questions, from Scholastic’s Science-Fair Project Guide, are listed below:

  • What is the effect of toothpaste brand on teeth-cleaning power?
  • What brand of trash bag can withstand the most weight before ripping?
  • How does the type of material affect how long a shirt takes to dry?

Written by Miranda Altice, Kaitlin Anselmo, Mark Coster, Allison Ebbets, and Jodie Magrath.

fun cool science experiments at home

Mark is the driving force behind STEM Geek. With 20 years of experience in chemistry education and research, and 3 willing children as guinea pigs, Mark has a passion for inspiring kids and adults to combine fun and learning with STEM Toys!

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  • Activities for Kids

49 Science Experiments for Kids to Try at Home

science experiments for kids like elephant toothpaste

Looking for science experiments for kids? Thanks to common household ingredients, some ingenuity, and our guide, these at-home science experiments for kids make any day exciting. To help you prepare, we’ve rated each experiment from one to five sponges so you know the messiness factor ahead of time. If you’re looking for seasonal projects, check out these water-themed science experiments . Or how about a few science projects for kids that are perfect for the backyard ?

TIP: Did you know there are a ton of awesome science kits and subscription boxes that will further develop your child’s love of science? KiwiCrate is one of our favorite ed-tech companies, as they offer seriously fun & enriching science & art projects, for kids 0 months up to 13+.

Classic Science Experiments for Kids

Potato battery science experiment.

a potato battery is a science experiment for kids

A lesson in: Chemical to electrical energy

When these nails and copper wires collide, heat is generated (psst ... heat is a result of expended energy, so you can explain to your little runner why he feels warmer after a race around the house). But with some potato magic, the properties of the nail and copper stay separated, allowing the heat to become the electric energy needed to power up your devices. Build your own potato battery with this tutorial from Wiki How .

Messiness factor: One sponge

Make a Baking Soda & Vinegar "Steam" Powered Boat

making a baking soda boat is a fun science experiment for kids

A lesson in: Chemical reactions

Sure, anyone can do the old baking soda and vinegar volcano, but what about creating a boat that is propelled by this classic chemical reaction ? Keep your little Einsteins busy this afternoon with this cool science project for kids that doesn't require a lot of prep. 

Messiness factor: Three sponges

Make Water Float

making water float is a fun science experiment for kids

A lesson in: Air pressure

Can you make water float? We bet you can. No, you don’t need to be a wizard or a witch. You don’t need to cast a spell. There’s nothing magic about it at all, in fact. You can make water float using science. The “trick” to this experiment is air pressure. Get everything you need and the how-to, right here , thanks to Mike Adamick and his book, Dad's Book of Awesome Science Experiments .

Messiness factor: Two sponges

Photo by Mike Adamick. Copyright © 2014 F+W Media, Inc. Used by permission of the publisher. All rights reserved.

Germ Testing Science Project for Kids

A germ-testing science project for kids

A lesson in: Germs

This germ-growing science project for kids will help them understand how even the cleanest-looking surfaces (and hands) can be filled with germs, is one of the easiest science experiments for kids we've found. Get the fun and yucky instructions at Kids Activity Blog .

Make an Edible Water Bottle

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A lesson in: Chemistry and specifically, spherification.

This futuristic science experiment will leave your kids wanting to know more about chemistry. Quench her thirst for knowledge when you create an edible membrane around teaspoons of water to make these handy water “bottles.” The tutorial is in video form over at Inhabitat.  Trust us, it’s as cool as it looks!

Messiness factor: One sponge.

Make Crystal Egg Geodes

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A lesson in: Molecular bonding and chemistry.

This grow-your-own experiment lets you grow crystals inside an eggshell. Be sure to get alum powder that contains potassium, or else you won’t get any crystal growth. Adding drops of food dye to the growing solution yields some super cool crystals. A perfectly formed geode takes about 12-15 hours to grow, making this a great weekend project. Get the tutorial for this science experiment for kids at Art and Soul.

Messiness factor: Four sponges.

Check the Iron in Breakfast Cereal

View this post on Instagram A post shared by Kimberly Scott (@kimberlyscottscience)

A lesson in: Magnetism.

You’ve probably seen the label that says “fortified with iron” on your cereal box, but how much iron is actually in your cereal? Is there enough to cause a magnetic reaction? This super easy experiment doesn’t require too many fancy ingredients (cereal + magnet) which means you and the kiddos can try it right away. The results may surprise you! Get the how-to at Rookie Parenting and get started!

Messiness Factor: Two sponges.

Learn About Shooting Stars

stargazing is an easy science experiment you can do at home

A lesson in: Astronomy

With this fun video from They Might Be Giants , kids can learn that shooting stars are not stars, they're meteorites. Then, take it out back for a fun backyard stargazing session. We love this science experiment you can do at home! 

Messiness Factor: One sponge

Related:  14 Backyard Science Experiments for Kids

Marshmallow Tower

marshmallows are good supplies for science experiments for kids

A lesson in: Engineering

Using only marshmallows and dry spaghetti noodles, kids can experiment with structure, stability, and weight distribution. Get the instructions from Kesler Science by clicking here.  

Messiness factor : 1 sponge

Paper Airplane Science

flying a paper airplane is a good science experiment for kids

A lesson in: Aerodynamics

By making various paper airplanes , your scientists can test the drag of each plane, which will have an effect on how far they fly. Get more info on this science project for kids here .

Messiness factor: 1 sponge

Walk on Eggs

walking on eggs is a fun science experiment for kids

A lesson in: Weight distribution

How can you walk on eggs without breaking them? Steve Spengler shows us how and teaches an awesome lesson on how an egg’s unique shape gives it tremendous strength, despite its seeming fragility. Check out this easy science experiment for kids to get started.

Messiness factor: 1-3 sponges, depending on the state of the eggs in the end!

using milk to explain molecules in a science experiment for kids

A Lesson in: Molecules

Fill a shallow dish with milk, drop food coloring, and make sure the drops don't touch. Then, dip a cotton swab in dish soap and place it in the middle of the dish. The colors will begin to swirl and seem as though they are moving on their own! Explain to your kids that the soap reduces surface tension and makes the fat molecules in the milk move. Click here for more science experiments that use food coloring.

Messiness Factor: 2 sponges

Professor Egghead's Lesson about Light

Professor Egghead has great science experiments for kids

A Lesson in : Light

Learn all about the sun and what it gives humans (think energy and warmth!) You'll also do an experiment to learn about different kinds of light, even ultraviolet rays. Get the video from Professor Egghead here.  

Messiness factor: 1 sponge 

Cup Amplifier

fun cool science experiments at home

A lesson in: Sound

Slide a mobile phone into this low-tech amplifier and the result will be music to your ears. The audio is deeper, richer, and louder, thanks to the science of sound waves and the natural amplification created by the cone-shaped cups. If the two cups look a bit like the attentive ears of a cat or fox, that’s no coincidence. Animal ears use the same science, but in reverse: they help creatures hear by gathering sound waves and directing them into the ear. For engineers, that’s a design worth copying.

Customize your amplifier to fit any size phone!

Tabs cut all around the hold make it easy to glue the cardboard tube in place.

Cut a slot with a flap to support your phone.

What’s Going On The Cup Amplifier focuses and projects sound waves, in the same way that a cheerleader’s megaphone (or even just your cupped hands) amplifies your voice. Once sound waves are created, they want to spread out in all directions. The amplifier directs them from your phone’s speakers into the cardboard cups, where, instead of scattering, they are gathered and channeled in one direction—out the openings.

Excerpted from  Cardboard Box Engineering  © 2020 by Jonathan Adolph. Used with permission from Storey Publishing.

Skittles Science

using skittles in a science experiment for kids

A Lesson in: Stratification

A great way to get rid of extra candy, this easy science experiment for kids uses Skittles and whatever liquids you want to use. The idea is, the candy is made of ingredients that dissolve, so kids get a chance to guess which liquid will make the Skittles dissolve the fastest. Get more info over at Little Bins for Little Hands . 

Find Out How Many Water Drops Fit on a Coin

an easy science experiment to do at home is to see how much water can fit on a coin.

A Lesson in: Chemistry

An easy science experiment to do at home is one that helps kids find out what affects the surface tension of water! You'll need basic materials like a penny and a water dropper, and be sure to make a hypothesis before you start. You might be surprised! Get the tutorial from Rookie Parenting . 

Pulley Experiment

a rope pulley is an easy science experiment

A Lesson in: Physics

This simple experiment requires a trip to the hardware store, but putting it all together is a cinch. Once you've completed the system, have your kids pick up different-sized rocks and make a note about how difficult it is. Then, try with the pulley. Is it easier or is it harder? To find out how to make your pulley, and for other questions to ask your kids, head over to Little Bins for Little Hands . 

Make a Volcano Explode

two boys doing a volcano explosion, an easy science experiment for kids

A Lesson in: Chemical reactions

There's a reason why this science experiment is so popular. When the solid baking soda (sodium bicarbonate—a base) mixes with the liquid vinegar (acetic acid—a weak acid), it creates a gas—carbon dioxide! Besides the chemical reaction, kids enjoy making the actual volcano, whether it's out of clay, mud, or foam sheets. Get a great step-by-step tutorial from The Dad’s Book of Awesome Science Experiments by clicking here . 

Messiness Factor: Four sponges

Bake Hygroscopic Cookies

Hygroscopic Cookies are an easy science experiments to do at home

A Lesson in: Hygroscopy. 

This simple science experiment is best when you check in on it the next morning. Bake up a batch of cookies, then place them in an airtight container with a piece of fresh bread. Watch as the cookies stay straight-from-the-oven soft thanks to the moisture of the bread (The sugar in the cookies is hygroscopic, which means it absorbs water molecules out of the bread). The best part? Getting to eat the cookies!

The Juice-Tasting Challenge

different juices

A lesson in : Taste buds and olfactory senses.

Tummy’s rumbling–it’s time to eat! Did you know that you “eat” with your nose and eyes as well as your mouth? It’s true. Put your family’s sense of smell and sight to the test with this juice-guessing game.

You’ll Need: Masking tape 4 glasses Pen and paper 4 flavors of juice 4 food colorings

How to: 1. Stack a piece of tape on the bottom of each glass and number them one to four, making sure your partner can’t see the numbers. Pour one type of juice into each glass.

2. Send your partner out of the room. Drip a different food coloring into each juice and stir so your partner can’t recognize the juice by its color alone. Record the number, juice type, and color in each glass on a piece of paper.

3. Call your partner back. Tell her to hold her nose, sip from each glass, and guess the juice If she’s like most people, she’ll be kind of confused–her eyes and tongue give her two conflicting flavor messages.

4. Ask her to unplug her nose, close her eyes, and sniff the juice before drinking it. Her guesses should be on target now. All hail the mighty schnoz!

Reprinted from  Exploralab: 150+ Ways to Investigate the Amazing Science All Around You . 

Messiness factor: One sponge. 

Experiment with Tie Dye

usee a Tie dye kit to do a science project with kids

A lesson in: Chemistry.

Dyes are fiber reactive, so there's a chemical reaction between the dye and the fabric. You can do this experiment with everything from paper to t-shirts. We've got a great list of tie-dye projects here . 

Messiness Factor : Five sponges.

Make a Sundial

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Unravel the mysteries of time. Or at least figure out the basics by setting up a sundial outside . Take time each hour to check the sun’s positioning and make note of it so your sidekick can see the bigger picture.

Messiness Factor : One sponge

Dry Ice Bubbles

dry ice bubbles are an at-home science project for kids

A lesson in: Gas.

Dry ice is already cool enough on its own, but it takes science to turn them into bubbles. When you add water, it changes the temperature of the dry ice, causing the ice to go from solid to gas. That’s where the fog and bubbles come from! Head to Simply Modern Mom to get the full tutorial. But be careful: Dry ice can cause serious skin burns, so make sure your kids are well-supervised and know not to touch the ice.

Messiness factor: Three sponges.

Invisible Licorice

fun cool science experiments at home

A lesson in : Light and perspective.

Did the candy melt or disappear? Your sweetums might think it’s magic, but it’s really all about how oil redirects light, causing half the candy to disappear! Click here for the instructions on how to recreate this mind-warping experiment.

Egg in a Bottle

egg in a bottle is a fun science experiment you can do at home

Your whistler has the basics of air pressure down just by using their mouth to blow. And now you can amaze them with this science experiment for kids. There is a little fire play involved (dropping a lit paper into the bottle), but that’s what causes the unbalanced air pressure, which pushes the egg into the bottle. Want to test it out? Head over to Steve Spangler Science for the tutorial.

Invisible Ink

invisible ink using lemon is a fun science experiment for kids

A lesson in: Oxidation.

If your snacker has noticed how their apples have turned brown after being left out for too long, then they’ve seen oxidization in action (loss of electrons and nutrients when in contact with oxygen). Fortunately, lemon juice only oxidizes when in contact with heat. This method works with baking soda and milk too. Click here to find out how to write secret messages with your little spy.

Kid-Safe Lava Lamps

fun cool science experiments at home

A lesson in: Density and intermolecular polarity.

These sound like big words for our little ones, but there’s an easier way to break it down. Water and oil won’t mix because they’re not the same “weight” or substance (just like clay and LEGOs won’t become one). Now add a drop of food coloring (which is heavier than oil) and a fizzy tablet and watch the air bubbles take coloring with them to the top. Head on over to S. L. Smith’s blog to see how it’s done .

Messiness factor: Two sponges.

fun cool science experiments at home

A Lesson in: Crystallization.

Be careful: The water only has the power to make the sugar crystals “invisible” when it’s piping hot. After the water cools down and evaporates, the sugar turns back into a solid. And with a little help of your sugar-soaked string, the crystals will find a home to grow upon and become rock candy. Learn how to make your smart sweets with these instructions from the Exploratorium .  

S'more Solar Oven

fun cool science experiments at home

A lesson in: Solar power.

Harness the power of the sun to make your favorite campfire treat! With just a few common household items you can create an  eco-friendly oven  just for melting marshmallows and chocolate, plus you can teach kids about the power of the sun. Click  here  to learn how.

Homemade Slime

girls making slime, which is a fun science experiment for kids

A lesson in: Polymers.

Is it a liquid or solid? The answer is both! This DIY slime—made from glue, borax, and water—is also known as a polymer (molecules that can stick close together to be a solid or spread apart and take liquid form). And it’s all thanks to borax, which acts as a binder to prevent the glue from going completely liquid. Check out Explorable’s recipe for mixing the ingredients . Prolong the life of your goo by keeping it in an airtight container in the fridge. And, if you need help with cleanup, check out our guide for how to get slime out of clothes, couches, and hair . 

Make Fizzy Lemonade

fun cool science experiments at home

Plain old fresh-squeezed lemonade is so last year. Boost the fun quotient and learn a simple science concept simultaneously when you recreate this edible Fizzy Lemonade drink from  Learn With Play at Home . It’s super easy to mix and little sippers report it’s pretty tickly too. A great alternative to the baking soda-vinegar volcano, it shows kids what happens when an acid and base are mixed together. 

Whirlpool in a Bottle

fun cool science experiments at home

A lesson in: physics, weather science. 

This easy little experiment doesn't take much: just two empty and clear 2-liter bottles, a metal washer, water and duct tape. Food coloring is optional. Fill one bottle with about two-thirds water. Place the washer on the bottle and line up the empty bottle on top of the water-filled one. Wrap the duct tape around the middle securing the two bottles together. Then, turn the bottles upside down. Does the water go straight down or do you see a mini whirlpool (Swirl the top or bottom a bit for a better effect.)? The spinning water is called a vortex, and all tornadoes, hurricanes and typhoons are examples of air vortexes. Since you’re using water, this is an example of a whirlpool. As the water spins faster, it pushes to the outside of the bottle creating a hole in the middle. The air from the bottom of the bottle comes up the middle and the water from the top flows back down through the hole.

Messiness factor : Two sponges.

Salt Crystal Feathers

fun cool science experiments at home

A lesson in: Evaporation

You’ve probably tried a salt crystal growing kit at some point in your life (5th grade Science Fair perhaps?) but Schooling a Monkey takes the idea to a new level with these Salt Crystal Feathers. This awe-inspiring project is deceptively simple and inexpensive to achieve, and requires just a wee bit of patience to see the results—kids will love checking in on the progress. 

Soda Blasting Experiment

soda bottles used in science experiments

A lesson in: Chemistry, pressure, and release of pressure

This experiment is one you'll definitely want to do outside. Step it up with this Mentos + soda experiment: head to Steve Spangler  for all the need-to-know details on this engaging experiment. 

Messiness factor: Three (very epic) sponges

Melting Rates

outdoor science projects for kids

A lesson in: Solar science and absorption

Different colors have different heat-absorbing capacities. Black has the greatest heat-absorbing capacity, which results in ice melting quicker than white, which reflects the most light. Learn how to observe and report on which colors affect ice’s melting rates here on Curiodyssey.  Get more sidewalk science ideas here .

Make Elephant Toothpaste

fun cool science experiments at home

A lesson in:  Chemistry and the exothermic process <<<impress your kids! 

If you’ve ever wondered how elephants keep their tusks clean, we’ve got the answer. They use elephant toothpaste! Find out how to mix your own and figure out the science behind this dynamic exothermic (heat-releasing) reaction from Fun at Home With Kids . Our favorite part? That you get to throw in some sensory playtime after the action’s over.

Messiness factor:  Three sponges. Maybe four. 

Bending Water with a Comb

static electricity experiments for kids

A lesson in: Electrical currents and static electricity

This  static electricity science experiment couldn't be any easier. In fact, other than a balloon or going down the slide, it might be the easiest way to teach kids about electrical currents. And, you can impress them with your wizarding skills once before you reveal the science behind it. Click here to get the step-by-step. 

Regrow Leftovers

fun cool science experiments at home

A lesson in : Photosynthesis and plant science.

Insert a little plant science into the mix by re-growing food from scraps. Think onions, potatoes, and lettuce for this one ( psst… green onions are a super easy, fast option). Get the low down on all that recycled goodness at Mrs. Happy Homemaker . Since plants need water and sunlight to grow, exposing scrap roots to that winning combo helps them recharge.

Messiness factor:  Two sponges.

Turning Pennies Green

fun cool science experiments at home

A lesson in: Chemical reactions.

It happens to the Statue of Liberty and it happens to the change in your pocket! Create your own home lab with just a few household ingredients (this experiment will literally cost you just pennies). It’s also a chemical reaction with very non-toxic ingredients, so it’s safe and fascinating even for young kids. Click over to Buggy and Buddy to get the simple how-to.

Film Canister Rocket

fun cool science experiments at home

A lesson in: Rocket science.

Like the popular baking soda and vinegar experiments, this film canister rocket literally takes it to the next level by using that creation of gas and energy to jet off into the sky. If your explorer has seen videos of mountain tops getting blown off during a volcanic eruption, this science project is pretty much any space lover’s version. Get the building instructions over at The Science Kiddo .

Disappearing Egg Shell

fun cool science experiments at home

Can you and the kiddos solve the mysterious case of the disappearing eggshell? Following the simple how-to at Go Science Kids , you’ll learn the step-by-step and talking points about the process along the way. Warning! Although it’s totally non-toxic, toddler-aged kids will be tempted to squeeze the egg at the end so make sure it’s a supervised experiment. Visit Go Science Kids to get cracking!

Fishing for Ice

ice salt is a fun science experiment for kids

A lesson in: Freezing/temperature.

Children living in snow-covered cities might witness their neighbors salting the driveway. Well, while that is definitely not for fun, this experiment is. Salt lowers the freezing point of ice so it melts, but it won’t be able to freeze unless it’s cold enough. See how The Science Kiddo made a clever game with this knowledge.

fun cool science experiments at home

A lesson in: How clouds hold water.

Let your imagineers pretend shaving cream is a cloud that holds colorful raindrops. As they squeeze more and more food coloring, their “cloud” will soon release the excess below—just like how real clouds get too heavy and let the rain loose on a gloomy day. Learn how to re-create this weather experiment here .

Dyed Plants

fun cool science experiments at home

A lesson in: Capillary action.

Find out how plants “drink” water with some food coloring . Use carnations, roses, or stalks of celery submerged in the colored water and watch the liquid slowly seep through the plant’s “veins” and towards the leaves. Keep an eye out -- you could have a very colorful bouquet just after the first day. Get the rundown by Dad’s Book of Awesome Science Experiments  over  here .

Dancing Oobleck

fun cool science experiments at home

A lesson in: Sound waves.

The word “oobleck” comes from a Dr. Seuss story where a young boy must rescue his kingdom from a sticky substance. But the neat part of this experiment is how oobleck reacts to vibrations. Put the oobleck over a subwoofer (on top of a cookie sheet!) and watch it dance to different frequencies. Your dancer will see how sound isn’t just about volume! Check out more of this awesome experiment from Tammy of Housing a Forest .

Messiness factor: Five sponges.

Homemade Lightning

fun cool science experiments at home

A lesson in: Static electricity. (Or weather science.)

Lightning is essentially electrons moving uber fast between the sky and the earth—and with a few simple materials, you can use homemade static electricity (the reason behind your hair sticking up when you rub a balloon or go through a tunnel slide super fast) for DIY lightning. Figure out how to recreate a family-friendly version of this spark by visiting the activity blog Learn Play Imagine .

Make a Bug Vacuum

fun cool science experiments at home

A Lesson in: Entomology

Scientists capture bugs for study using a mouth-powered vacuum, called an aspirator or a pooter. Kids can make their own version from a mason jar, then use it to gather ants (or other small insects) and observe them in action.

What you'll need: Pint-size mason jar with a two-piece lid Milk or juice carton Hole punch 2 bendy straws Tape Gauze pad

How to:  1. Open the milk carton along the seams and flatten it out. Use the inner lid of the mason jar as a template to trace a circle on the carton. Cut out the circle and punch two holes in the center about an inch apart.

2. Carefully slide the short ends of the bendy straws into the holes. Tape a piece of gauze pad around the end of one straw to prevent any bugs from getting sucked up.

3 Set the lid on the jar and fasten it in place with the ring.

4. To use your pooter, place the tip of the straw without the gauze near a bug. Put your mouth on the straw with the gauze, and gently suck in. The bug should travel up the straw and land unharmed at the bottom of the jar.

Take It Further Capture some ants in your bug vacuum, then use a magnifying glass to observe these remarkable insects up close. Open the jar and feed them a few drops of sugary water or corn syrup, or try giving them some birdseed. Ants live in colonies headed by a queen ant, and they can’t last long on their own. When you are done observing them, release your ants where you found them. (Note: Some ants bite, so be careful handling them.)

Tell Me More Ants were the Earth’s first farmers. For millions of years, certain species have been creating underground gardens where they grow their favorite fungus for food. They tend to their crops, bringing them water and even weeding out other fungi they don’t want.

Excerpted from Mason Jar Science © by Jonathan Adolph, used with permission from Storey Publishing . Available online , $12.69.

Messiness Factor : One sponge. 

A Smell Challenge

fun cool science experiments at home

A Lesson in: Olfactory senses.

Teach kids the importance of smell with this activity that asks them to use only their noses to identify objects. Can they sniff out the fish oil over the garlic cloves? The lemon juice over the orange oil? Homeschooling blogger Ana has the instructions at Babble Dabble Do .

Is This Soluble?

fun cool science experiments at home

A Lesson in: Mixtures 

Teaching children chemistry can become a fun, at-home activity as a weekend afternoon project or as part of their remote learning curriculum. One of the best experiments you can do is the mixing activity. With this exercise, children will learn the difference between soluble and insoluble substances. Do not worry! You can do it with ingredients you already have in your kitchen!

Ingredients

  • Oil (cooking oil, vegetable oil, olive oil, etc.)
  • Food Coloring
  • Transparent containers with a lid or transparent cups with a spoon to mix

Before you begin the activity, ask the children what each ingredient is—whether it is a solid, liquid, or gas—and what they think will happen when you begin mixing them. This guarantees a hands-on experiment that will allow the children to feel they are in control.

  • Mix the water and the sand. Children will notice there is a separation between both ingredients and that layers have formed, so it is an insoluble reaction.
  • Mix the water and the food coloring. Children will see them combine—the water turning into that color—and know it is a soluble reaction.
  • Mix the water and the table salt. The salt will disappear in the water, making it another soluble reaction.
  • Mix the water and the oil. This time, a clear layer will be formed, showing another insoluble reaction.

After these mixing activities, you can further this experiment by letting the children find other ingredients to mix with water and have them determine if that substance is soluble or insoluble. The main goal is to show them different reactions and layers.

For a clear example of this experiment, check out this video .

Messiness factor: 2 sponges 

Experiment courtesy of Dr. Stephanie Ryan. See more fun about science over at letslearnaboutscience.com

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Hands On As We Grow®

Hands on kids activities for hands on moms. Focusing on kids activities perfect for toddlers and preschoolers.

50 Amazingly Simple Science Experiments for Kids at Home

Science Kindergartners Preschoolers Experiment Resources 30 Comments

Kids love experimenting , and these 50 simple science experiments for kids at home from Brigitte are perfect for all ages! Plus, you probably already have the basic supplies at home.

My daughters and I have had a lot of fun doing science experiments. Each year when we create our spring and summer list , we make sure to include “science days” which are days filled with science experiments.

Sometimes our science experiments don’t work according to plan, but I have been told that all scientists have failures with experiments from time to time.

It’s okay if they aren’t all successes.

Get the FREE Science Experiments Download

50 Simple Science Experiments with Supplies You Already Have

Try these 50 simple science experiments for kids that use supplies you already have at home!

I love these 50 simple science experiments for you to try with your little scientists. They all use basic household supplies that you probably already have at home!

Most of these are experiments my daughters and I have done together. I hope you enjoy them as much as we have!

Get little ones involved with these easy toddler-friendly science experiment ideas!

Sink or Float Simple Science Experiment for Kids to try at home, fine 50 easy science experiments for kids!

Simple Science Experiments with Water

Not only can water  be a blast to play in, but water plus a few basic supplies equals a lot of science fun!

  • Make an orange sink and float with an orange buoyancy experiment from Playdough to Plato.
  • Compare the amount of salt in different types of water with this salty egg experiment  as seen on Uplifting Mayhem.
  • Do a little more sinking or floating with a fun sink or float experiment  even toddlers can do from Hands On As We Grow.
  • Use the free printable to record what sinks or floats in an outdoor experiment from Buggy and Buddy.
  • Create some beautiful pieces of paper with this rainbow paper experiment from Science Kiddo.
  • Talk about solutions as you try the “what dissolves in water” experiment  as seen on Hands On As We Grow.
  • Learn about water absorption with this simple experiment from Little Bins for Little Hands.
  • Mix some fun colors with this oil and water experiment  from Fun Learning for Kids.
  • Make your own lava lamp , just like on  Hands On As We Grow.
  • Can you keep all the water in the bag? Try it with a  leak-proof bag experiment  as seen on Hands On As We Grow.
  • Learn about surface tension with this  magic finger pepper experiment  found on Hands On As We Grow.
  • Make your own  water cycle in a bottle  as seen on A Dab of Glue Will Do.

Colored Baking Soda & Vinegar Simple Science Experiment for Kids to try at home, fine 50 easy science experiments for kids!

Simple Science Experiments with Baking Soda and Vinegar

Baking soda + vinegar = a great chemical reaction! This fizzy reaction can fuel a variety of simple science experiments at home.

First of all, we have tested and found out the absolute best combination of baking soda and vinegar to get the best reaction possible. It makes a difference if you add vinegar to baking soda or vice versa! And how much you use!

  • Inflate a balloon without blowing into it with a baking soda and vinegar balloon experiment  as seen on Little Bins for Little Hands.
  • Practice colors as you do a baking soda and vinegar with color experiment as seen on Hands On As We Grow.
  • Have fun outside with an outdoor volcano eruption  as seen on Preschool Inspirations.
  • Have more volcano fun by making apple volcanoes as seen on The Resourceful Mama.
  • Learn about acids and bases and the chemical reaction that occurs when you make apple seeds dance with a   jumping apple seeds experiment  as seen on JDaniel4s Mom.
  • Watch some rice dance with a   dancing rice experiment as seen on Green Kid Crafts.
  • Continue your dance party by making raisins dance with a dancing raisin experiment  as seen on 123 Homeschool 4 Me. What other items can you get to dance?
  • Learn more about acids and bases by dissolving a sea shell as seen on Teach Beside Me.
  • Make an egg shell disappear with this disappearing egg activity  as seen on Premeditated Leftovers.
  • See how far you can launch a soda bottle with this baking soda powered boat as seen on Science Sparks.
  • Make your own rocks (or eggs) with this fizzy treasure rocks experiment as seen on Living Life and Learning.
  • Have some fun this summer with this frozen vinegar experiment as seen on Inspiration Laboratories.

Plant Themed Simple Science Experiments

Enjoy learning about seeds, plant parts, and how plants grow with these simple science experiments.

  • Learn about how plants soak up water through their stems with a flower experiment for kids  from Growing A Jeweled Rose.
  • Watch seeds sprout as you grow seeds in a jar  as seen on Teaching Mama.
  • Learn about the parts of the seed with a seed coat experiment as seen on Gift of Curiosity.
  • Build a house out of sponges and then watch it sprout with this sprout house as seen on The Stem Laboratory.
  • Learn what liquids allow seeds to grow the best with this seed experiment  as seen on Gift of Curiosity.
  • Explore how plants grow towards the light with this shoe-box maze experiment from Plants for Kids.

Try these 50 simple science experiments for kids that use supplies you already have at home!

Animal Themed Simple Science Experiments

Learning about animals can be even more fun with some simple hands-on simple science experiments.

  • Find out more about giraffes and create some giraffe spots  as seen on Preschool Powol Packets.
  • Learn about how animals in the Arctic keep warm by making an arctic glove  as seen on Steve Spangler Science.
  • Discover how penguins stay dry with a penguin feather experiment as seen on Raising Little Superheroes.
  • Learn about different bird beaks with a bird beak experiment as seen on Blessed Beyond a Doubt.
  • Explore how fish (and hermit crabs) breathe with this gill experiment  as seen on Preschool Powol Packets.
  • Learn about sharks with a   shark buoyancy experiment as seen on Little Bins for Little Hands.

Color Changing Milk Simple Science Experiment for Kids to try at home, fine 50 easy science experiments for kids!

Even More Simple Science Experiment for Kids at Home!

If you are still looking for more science fun, you may enjoy the following simple science experiments.

  • Find out how sugary drinks hurt teeth with an  eggs-periment  as seen on Feels Like Home Blog.
  • Discover geodes (the state rock of Iowa) with this eggshell geode crystal experiment  as seen on Science Bob.
  • Learn about air pressure with an egg and bottle experiment  as seen on Science Sparks.
  • Find out what causes an apple to brown with this apple science experiment  as seen on Teach Beside Me.
  • Make an  edible bubble apple with an experiment as seen on Preschool Powol Packet.
  • Learn more about surface tension with a penny and water experiment  as seen on Artful Parent.
  • Mix colors like magic with this color changing milk experiment  from Hands On As We Grow.
  • Blow up a balloon with this soda and balloon experiment from Learn Play Imagine.
  • Practice letters by making beautiful crystal letters as seen on Books and Giggles.
  • Make your own indoor hovercraft  as seen on Living Life and Learning.
  • Learn about colors with this beautiful butterfly chromatography craft  as seen on Buggy and Buddy.
  • Make soap souffle  as seen on Steve Spangler Science.
  • After talking about liquids and solids (and finding them in your own home), create oobleck  as seen on Babble Dabble Do. Is it a liquid, or is it a solid?
  • Learn about frost by making some indoor frost as seen on Little Bin for Little Hands.
  • Make your own homemade butter in a jar as seen on Happy Hooligans.

What scientific experiment will you try first?

Try these 50 simple science experiments for kids that use supplies you already have at home!

About Brigitte Brulz

Brigitte Brulz is a homeschooling mom of two daughters, wife of her high school sweetheart, and author of Jobs of a Preschooler and Pickles, Pickles, I Like Pickles. She offers free coloring pages and activity ideas on her website at BrigitteBrulz.com .

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Reader Interactions

30 comments.

college brawl says

March 13, 2024 at 1:05 am

Wow, these experiments look like so much fun! I can’t wait to try them out with my kids. We’re always looking for new and creative ways to learn about science at home, and these experiments look like they’ll be perfect for us. Thanks for sharing! 😊

threadsBay says

August 31, 2023 at 3:13 am

I love science experiments! This one is really simple and easy to do.

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Science Fun

Science Experiments For Kids

Science experiments you can do at home!  Explore science experiments by categories and discover hundreds of science experiments you can try at home using readily available materials. Click on the experiment category image or the experiment category link below to see the experiments in each category. Have fun trying these experiments at home or use them for SCIENCE FAIR PROJECT IDEAS.

fun cool science experiments at home

Easy Science Experiments For Kids:

fun cool science experiments at home

Kitchen Chemistry:

Cook Up Some Crazy Chemistry In Your Kitchen

fun cool science experiments at home

Cool And Crazy Concoctions:

fun cool science experiments at home

Electricity And Magnetism:

Shockingly Easy Electricity And Magnetism Experiments

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Magic Science Experiments :

Seemingly Magical Science Experiments

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Force And Motion:

Fun Force And Motion Science Experiments

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Balloon Science Experiments:

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Color Science Experiments:

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Chemical Reactions:

Create Awesome Chemical Reactions

fun cool science experiments at home

Amazing Animal Activities:

Learn About Animals Aquariums And More

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Weather And Air Experiments:

fun cool science experiments at home

Easy Density Experiments:

Sink Or Swim With These Awesome Density Experiments

fun cool science experiments at home

Light And Sound Science Experiments:

These Science Experiments Look And Sound Amazing

fun cool science experiments at home

Dinosaur And Fossil Fun:

Enter A Wonderful World Of Dinosaur Experiments

fun cool science experiments at home

Rocket Science And Space Experiments:

Blast Off With The Cool Space Science Experiments

fun cool science experiments at home

Candy Science Experiments:

Sweet Science Experiments To Explore And Enjoy

fun cool science experiments at home

Crazy Crystals:

Crystal Growing Science Experiments

fun cool science experiments at home

Botany And Biology:

Explore Living Things With These Experiments

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Geology Rocks:

Dig Into Fun And Exciting Geological Experiments

fun cool science experiments at home

Human Body:

Learn About The Human Body And How It Works

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Ocean And Marine Animals:

Dive Into The Deep With These Ocean Experiments

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STEM And Engineering Activities:

Design And Build Amazing Creations

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Ecology Science Experiments:

Learn About The World Around You

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Wacky Water Experiments:

Weird And Wonderful Water Experiments

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20 Awesome Science Experiments You Can Do Right Now At Home

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We can all agree that science is awesome. And you can bring that awesomeness into your very own home with these 20 safe DIY experiments you can do right now with ordinary household items.

1. Make Objects Seemingly Disappear Refraction is when light changes direction and speed as it passes from one object to another. Only visible objects reflect light. When two materials with similar reflective properties come into contact, light will pass through both materials at the same speed, rendering the other material invisible. Check out this video from BritLab  on how to turn glass invisible using vegetable oil and pyrex glass.

2. Freeze Water Instantly When purified water is cooled to just below freezing point, a quick nudge or an icecube placed in it is all it takes for the water to instantly freeze. You can finally have the power of Frozone from The Incredibles on a very small scale! Check out the video on this "cool" experiment. 

3. Create Oobleck And Make It Dance To The Music Named after a sticky substance in a children’s book by Dr Seuss , Oobleck is a non-Newtonian fluid, which means it can behave as both a solid and a liquid. And when placed on a sound source, the vibrations causes the mixture to gloopily dance. Check out these instructions from Housing A Forest  on how to make this groovy fluid funk out in every way.

4. Create Your Own Hybrid Rocket Engine With a combination of a solid fuel source and a liquid oxidizer, hybrid rocket engines can propel themselves. And on a small scale, you can create your own hybrid rocket engine, using pasta, mouthwash and yeast. Sadly, it won’t propel much, but who said rocket science ain’t easy? Check out this video from NightHawkInLight on how to make this mini engine.

5. Create "Magic Mud" Another non-Newtonian fluid here, this time from the humble potato. "Magic Mud" is actually starch found in potatoes. It’ll remain hard when handled but leave it alone and it turns into a liquid. Make your own “Magic Mud” with this video.

6. Command The Skies And Create A Cloud In A Bottle Not quite a storm in a teacup, but it is a cloud in a bottle. Clouds up in the sky are formed when water vapor cools and condenses into visible water droplets. Create your own cloud in a bottle using a few household items with these wikiHow instructions .

7. Create An Underwater Magical World First synthesized by Adolf van Baeyer in 1871, fluorescein is a non-toxic powder found in highlighter pens, and used by NASA to find shuttles that land in the sea. Create an underwater magical world with this video from NightHawkInLight .

9. Make Your Own Lava Lamp Inside a lava lamp are colored bubbles of wax suspended in a clear or colorless liquid, which changes density when warmed by a heating element at the base, allowing them to rise and fall hypnotically. Create your own lava lamp with these video instructions.

10. Create Magnetic Fluid A ferrofluid is a liquid that contains nanoscale particles of metal, which can become magnetized. And with oil, toner and a magnet , you can create your own ferrofluid and harness the power of magnetism! 

12. Make Waterproof Sand A hydrophobic substance is one that repels water. When sand is combined with a water-resistant chemical, it becomes hydrophobic. So when it comes into contact with water, the sand will remain dry and reusable. Make your own waterproof sand with this video .

13. Make Elephant's Toothpaste Elephant’s toothpaste is a steaming foamy substance created by the rapid decomposition of hydrogen peroxide, which sort of resembles giant-sized toothpaste. Make your own elephant’s toothpaste with these instructions.

14. Make Crystal Bubbles When the temperature falls below 0 o C (32 o F), it’s possible to freeze bubbles into crystals. No instructions needed here, just some bubble mix and chilly weather.

15. Make Moving Liquid Art Mixing dish soap and milk together causes the surface tension of the milk to break down. Throw in different food colorings and create this trippy chemical reaction.

16. Create Colourful Carnations Flowers absorb water through their stems, and if that water has food coloring in it, the flowers will also absorb that color. Create some wonderfully colored flowers with these wikiHow instructions .

17. "Magically" Turn Water Into Wine Turn water into wine with this  video  by experimenter Dave Hax . Because water has a higher density than wine, they can switch places. Amaze your friends with this fun science trick.

18. Release The Energy In Candy (Without Eating It) Dropping a gummy bear into a test tube with potassium chlorate releases the chemical energy inside in an intense chemical reaction. That’s exactly what's happening when you eat candy, kids.

19. Make Water "Mysteriously" Disappear Sodium polyacrylate is a super-absorbent polymer, capable of absorbing up to 300 times its own weight in water. Found in disposable diapers, you can make water disappear in seconds with this video .

20. Create A Rainbow In A Jar Different liquids have different masses and different densities. For example, oil is less dense than water and will float on top of its surface. By combining liquids of different densities and adding food coloring, you can make an entire rainbow in a jar with this video .

There you have it – 20 experiments for you to explore the incredible world of science!

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45 Easy Science Experiments for Kids

Hello, STEM! These simple DIY activities can be done at home or in school.

at home water cycle science experiment for kids

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Imagine blowing the biggest bubbles imaginable — or even making bubbles within bubbles. Or sending vessels — rockets, tea bags, airplanes — soaring through the sky for impossible distances. Now imagine making things explode, or change colors, or reveal hidden messages with just a few simple mixtures.

None of this is magic. It's all science that you can do at home, most likely with ingredients you already have in your house. So, next time you need a boredom-busting indoor activity on a rainy day or a DIY project to get their minds humming, try one of these best at-home science experiments for kids , which cover topics like cover magnetism, surface tension, astronomy, chemistry, physics and more.

First off, it's good to start them off with the scientific method. Give them a journal to record their observations, questions, hypotheses, experiments, results and conclusions. As always, safety counts: wear goggles and coats or aprons if need be (sometimes kids get a kick out of how scientific the protective gear makes them look), and always make sure that the kids are supervised when doing them. (Warning: Some of these are messy!)

These experiments are mostly designed for preschoolers through elementary schoolers — with a couple that are either demonstrations or better for older kids — but if you have a younger one, you can check out these 1-year-old learning activities , toddler learning activities and preschool/kindergarten learning activities , some of which also cover STEM subjects.

Floating Fish

dryerase fish float in a shallow dish of water as part of an athome science experiment for kids

Here's another one that deals with solubility and density.

  • Draw the outline of a fish on the bottom of a glass plate or tray in dry-erase marker. Retrace your drawing to make sure all the lines are connected. Let dry for a minute or two.
  • Fill the measuring cup with tap water. Place the pour spout just inside the corner of the dish and add water very slowly until it just covers the bottom. Be careful not to pour water directly onto your drawing or make splashes near it. The water will move toward your drawing, eventually surrounding it. Observe what happens. If the water splashes or it doesn’t work on your first try, empty the dish, erase the drawing with a paper towel, dry off the dish, and try again.
  • Tilt the dish slightly from side to side. What happens? Jot it down.

The ink in dry erase markers is engineered to be slippery. It’s made with a chemical that causes it to easily release from surfaces. (Permanent markers are made with a chemical that makes the ink stick to surfaces, so be sure not to use these in your experiment!)

The easy-release ink lets go from a surface, but why does it float? There are two reasons. First, dry erase ink isn’t soluble, which means it won’t dissolve in water. Second, dry erase ink is less dense than the water, so it becomes buoyant, meaning it can float. When you tilt the dish, the fish moves around on the water’s surface.

From Good Housekeeping Amazing Science: 83 Hands-on S.T.E.A.M Experiments for Curious Kids! See more in the book »

Brush, Brush!

eggs, toothbrushes and different kinds of liquids form the materials for this at home science experiment for kids

This one will really get them into brushing their teeth once they scientifically prove all the good things that toothpaste can do.

  • Write on sticky notes: Soda 1, Soda 2, Juice 1, and Juice 2. Place them in a row on a counter.
  • Fill two glasses halfway with brown soda and place behind the Soda 1 and Soda 2 sticky notes. Fill two glasses halfway with lemon juice and place behind the Juice 1 and Juice 2 sticky notes.
  • Carefully place one egg in the bowl. Squeeze a big dollop — about one tablespoon — of toothpaste on top of the egg and gently rub the toothpaste all around with your hands until the egg is completely covered in a thick layer of toothpaste. Repeat with a second egg.
  • Gently submerge the toothpaste-covered eggs into the liquids: one egg in the glass labeled Soda 1 and the other egg in the glass labeled Juice 1. Wash and dry your hands.
  • Gently submerge the remaining eggs, without toothpaste on them, in the remaining glasses: one in the glass labeled Soda 2 and the other in the glass of juice labeled Juice 2. Wash and dry your hands. Leave the eggs in the glasses for 12 hours.
  • After 12 hours, remove the eggs from the glasses of soda one at a time. Rinse them in cool water and pat them dry with the towel. Place each egg by the sticky note of the glass it was in. Are the eggs the same or different colors?
  • Remove the eggs from the glasses of juice one at a time. Rinse them under the faucet and pat them dry. Place each egg by the sticky note of the glass it was in. Feel the eggs gently. Does one feel stronger or weaker than the other?
  • Write down your observations in your science notebook.

The eggshells in this experiment represent the enamel (outer coating) on your teeth. Toothpaste cleans your teeth and prevents stains: it removes food and drink particles that are stuck on your teeth. Teeth can be stained easily by dark-colored liquids like cola, coffee or tea. The egg without toothpaste will be brown and discolored. The egg covered in toothpaste was protected from turning brown.

Toothpaste also protects your pearly whites from decay (breaking down). The egg without toothpaste left in the lemon juice was worn down and soft to the touch, while the egg that was protected with toothpaste is stronger. The lemon juice is acidic, and those acids broke down the shell just as acidic drinks can wear away your tooth enamel. When a tooth is worn down, a cavity can form more easily. But the fluoride in toothpaste mixes with your saliva to create a protective coating around your tooth enamel. It helps keep your teeth strong and cavity-free.

Grow an Avocado Tree

an avocado tree grows from a pit as part of this at home science experiment for kids

For an easy lesson in Earth Science, your family can grow an avocado tree from a pit. You can buy an AvoSeedo kit , or just peel the seed and suspend it over water with toothpicks.

Get the tutorial »

Milk Bottle Xylophone

milk bottle xylophone consisting of seven bottles of varying amounts of coloured water and a metal spoon, in a row, as part of an at home science experiment

No for an experiment in sound!

  • Arrange six glass jars or bottles, all the same size with no lids, in a line. What will each jar sound like when you tap it with a spoon? Make a prediction, then tap each jar. Record your observations.
  • Next, put water in each of the jars. Pour 1⁄4 cup (60 ml) of water into the first jar. Add 1⁄2 cup (120 ml) of water to the second jar. Continue in 1⁄4-cup increments, adding 3⁄4 cup (180 ml) of water to the third jar, 1 cup (240 ml) of water to the fourth jar, 11⁄4 cups (300 ml) of water to the fifth jar, and 11⁄2 cups (360 ml) to the sixth jar. Add a couple of drops of food coloring to each jar.
  • What will each jar sound like? Will they sound the same or different than when the container was empty? Will they sound the same or different from one another? Record your predictions.
  • Tap each jar with a metal spoon. Write down your observations about each jar’s pitch (how high or low a sound is) in your notebook.

Sound waves are created by vibrations, which are back-and-forth movements that are repeated again and again. Pitch depends on the frequency of the waves — how many are created each second. A high pitch is created by high-frequency sound waves, and can sound squeaky. A low pitch is created by low-frequency sound waves, and sounds deep and booming.

When you tapped the jar, it vibrated. The vibrations traveled from the jar to the water to the air and eventually to your ears. The jars with more water had a low pitch. The sound waves vibrated more slowly because they had more water to travel through. The jars with less water had higher pitches. The sound waves vibrated faster because they had less water to travel through. A jar with no water in it makes the highest pitch because it has the least substance to travel through.

"Elephant Toothpaste"

foamy striped elephant toothpaste overflows from a bottle in this science experiment for kids

Okay, elephants don't really brush with this stuff, which is made from a chemical reaction between hydrogen peroxide, yeast, dish soap and a few other simple ingredients. But this experiment has a big "wow" factor since, when the substances are mixed, the "toothpaste" foams out of the bottle. You can use it to teach kids about catalysts and exothermic reactions.

Get the tutorial at Babble Dabble Do »

DIY Compass

a diy compass, made as a science experiment for kids, floats in a bowl next to a digital compass pointing in the same direction

Explore the way magnetism works, and how it affects everyday objects, by magnetizing a needle and making a DIY compass. You can even spin the compass in the water, and it'll end up pointing the right way again.

Get the tutorial at STEAM Powered Family »

Craft Stick Chain Reaction

colored craft sticks with pom poms on top are lined up on grass as part of a science experiments for kids about chain reactions and potential and kinetic energy

Kids can learn about the differences between potential and kinetic energy with this chain reaction. It makes a big impact: Once the tension is released, the pom poms go flying through the air!

Get the the tutorial at Science Sparks »

Color-Changing Invisible Ink

different messages and pictures are written in different substances to test out different color changing invisible inks as part of a science experiment for kids

Kids will feel like super-spies when they use this heatless method to reveal pictures or colors written with "invisible ink." You can try different acid/base combinations to see which one makes the most dramatic result.

Get the tutorial at Research Parent »

Paper Bridge

pennies sit on a construction paper bridge that spans two red solo cups in this science experiment for kids

Get the engineering back into STEM with this activity, which challenges kids to create a paper bridge that's strong enough to hold as many pennies as possible. How can they manipulate the paper to make it sturdier? (Hint: Fold it!)

See the paper bridge tutorial at KidsActivities.com »

an ice cube is suspended on a string above a bowl of ice in this science experiment for kids

Challenge your little scientist to lift up an ice cube with just a piece of string. It's possible ... with a little salt to help. Salt melts the ice and lowers the freezing point of the ice cube, which absorbs the heat from the water around it, making the water cold enough to re-freeze around the string.

Get the tutorial at Playdough to Plato »

Marshmallow Catapult

a marshmallow catapult made from craft sticks and a wooden spoon is a great science experiment for kids

Another lesson in potential and kinetic energy, kids will love sending mini marshmallows flying in the name of science. Change some of the variables and see how that affects the marshmallow's trajectory.

Get the tutorial at Hello, Wonderful »

Leaf Breathing

bubbles form on a leaf under water as part of a leaf breathing science experiment for kids

It's hard for kids to picture how plants and trees "breathe" through their leaves — until they see the bubbles appear on a leaf that's submerged in water. You can also teach them about photosynthesis by putting different leaves in different spots with varying levels of sunlight.

Get the tutorial at KC EDventures »

Hoop-and-Straw Airplane

a hoop and straw airplane, created as part of a science experiment for kids, sits on a black background

We all remember how to fold those classic, triangular paper airplanes, but these hoop-and-straw airplanes fly way better (and straighter). Experiment by changing the length of the straw and the size of the hoops and see how it affects the flight.

Get the tutorial at Mombrite »

Film Canister Rocket

a diy rocket takes off from a table, where another rocket waits, in this science experiment for kids

Blast off! You don't need jet fuel to make these rockets go, just Alka-Seltzer tablets and baking soda, but they'll be amazed when they achieve lift-off! (Note: If you can't find old film canisters, tubes of Airborne work, too.)

Get the tutorial at Raising Lifelong Learners »

Coin Inertia

a stack of coins sits on a piece of cardboard on top of a glass of water as part of a science experiment for kids about inertia

Stack up about five or so coins on a piece of cardboard and place it over a glass of water. Then, flick the cardboard out from on top of the glass. Do the coins drop into the water, or ride with the cardboard? Due to inertia, they drop into the water — a very visual (and fun!) demonstration of Newton's First Law of Motion.

Get the tutorial at Engineering Emily »

Apple Oxidation

science experiments for kids   apple oxidation

What works best for keeping an apple from turning brown? Test to find out! Slice up an apple, and let each slice soak in a different liquid. Then take them out, lay them on a tray, and check the brownness after three minutes, six minutes and so on. Not only does this test the properties of different liquids, it also helps students practice the scientific method if they create hypotheses about which liquids would be most effective.

Get the tutorial at Jennifer Findley »

RELATED: 50 Fun Activities for Kids Will Keep Them Entertained for Hours

Coffee Ground Fossils

a salt dough circle "fossil" with dinosaur footprints, made as part of an athome science experiment for kids

By making a salt dough with coffee grounds and pressing various shapes into it (toy dinosaur feet, seashells), kids can get a better understanding of how fossils are made. If you poke a hole in the top before it dries, the kids can hang their "fossils" up in their rooms.

Get the tutorial at Crafts by Amanda »

Chromatography Flowers

a coffee filter flower with an led in the center is decorated with swirls of color as part of this at home science experiment for kids

Chromatography is the process of separating a solution into different parts — like the pigments in the ink used in markers. If you draw stripes around a coffee filter, then fold it up and dip the tip in water, the water will travel up the filter and separate the marker ink into its different pigments (in cool patterns that you can display as a craft project). This family made the end-result even brighter by adding an LED circuit to the center.

Get the tutorial at Steam Powered Family »

Water Walking

five cups with different colored liquid in them are connected by paper towel bridges as part of this at home science experiment for kids

You'll need six containers of water for this one: three with clear water, one with red food coloring, one with blue coloring, and one with yellow coloring. Arrange them in a circle, alternating colored and clear containers, and make bridges between the containers with folded paper towels. Your kids will be amazed to see the colored water "walk" over the bridges and into the clear containers, mixing colors, and giving them a first-hand look at the magic of capillarity.

Get the tutorial at Fun Learning for Kids »

Sunscreen Test

colorful construction paper painted with different sunscreens, as part of an athome science experiment for kids

This experiment puts the A (art) in STEAM: Paint different designs on construction paper with different sunscreens, leave the papers out in the sun and compare the results. Then, hang your "conclusions" on your fridge.

Get the tutorial at Tonya Staab »

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Marisa (she/her) has covered all things parenting, from the postpartum period through the empty nest, for Good Housekeeping since 2018; she previously wrote about parents and families at Parents and Working Mother . She lives with her husband and daughter in Brooklyn, where she can be found dominating the audio round at her local bar trivia night or tweeting about movies.

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50 Fun Kids Science Experiments

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Science doesn’t need to be complicated. These easy science experiments below are awesome for kids! They are visually stimulating, hands-on, and sensory-rich, making them fun to do and perfect for teaching simple science concepts at home or in the classroom.

fun cool science experiments at home

Top 10 Science Experiments

Click on the titles below for the full supplies list and easy step-by-step instructions. Have fun trying these experiments at home or in the classroom, or even use them for your next science fair project!

baking soda and vinegar balloon experiment

Baking Soda Balloon Experiment

Can you make a balloon inflate on its own? Grab a few basic kitchen ingredients and test them out! Try amazing chemistry for kids at your fingertips.

artificial rainbow

Rainbow In A Jar

Enjoy learning about the basics of color mixing up to the density of liquids with this simple water density experiment . There are even more ways to explore rainbows here with walking water, prisms, and more.

fun cool science experiments at home

This color-changing magic milk experiment will explode your dish with color. Add dish soap and food coloring to milk for cool chemistry!

fun cool science experiments at home

Seed Germination Experiment

Not all kids’ science experiments involve chemical reactions. Watch how a seed grows , which provides a window into the amazing field of biology .

fun cool science experiments at home

Egg Vinegar Experiment

One of our favorite science experiments is a naked egg or rubber egg experiment . Can you make your egg bounce? What happened to the shell?

fun cool science experiments at home

Dancing Corn

Find out how to make corn dance with this easy experiment. Also, check out our dancing raisins and dancing cranberries.

fun cool science experiments at home

Grow Crystals

Growing borax crystals is easy and a great way to learn about solutions. You could also grow sugar crystals , eggshell geodes , or salt crystals .

fun cool science experiments at home

Lava Lamp Experiment

It is great for learning about what happens when you mix oil and water. a homemade lava lamp is a cool science experiment kids will want to do repeatedly!

fun cool science experiments at home

Skittles Experiment

Who doesn’t like doing science with candy? Try this classic Skittles science experiment and explore why the colors don’t mix when added to water.

fun cool science experiments at home

Lemon Volcano

Watch your kids’ faces light up, and their eyes widen when you test out cool chemistry with a lemon volcano using common household items, baking soda, and vinegar.

DIY popsicle stick catapult Inexpensive STEM activity

Bonus! Popsicle Stick Catapult

Kid tested, STEM approved! Making a popsicle stick catapult is a fantastic way to dive into hands-on physics and engineering.

Grab the handy Top 10 Science Experiments list here!

fun cool science experiments at home

Free Science Ideas Guide

Grab this free science experiments challenge calendar and have fun with science right away. Use the clickable links to see how to set up each science project.

fun cool science experiments at home

Get Started With A Science Fair Project

💡Want to turn one of these fun and easy science experiments into a science fair project? Then, you will want to check out these helpful resources.

  • Easy Science Fair Projects
  • Science Project Tips From A Teacher
  • Science Fair Board Ideas

Easy Science Experiments For Kids

fun cool science experiments at home

Science Experiments By Topic

Are you looking for a specific topic? Check out these additional resources below. Each topic includes easy-to-understand information, everyday examples, and additional hands-on activities and experiments.

  • Chemistry Experiments
  • Physics Experiments
  • Chemical Reaction Experiments
  • Candy Experiments
  • Plant Experiments
  • Kitchen Science
  • Water Experiments
  • Baking Soda Experiments
  • States Of Matter Experiments
  • Physical Change Experiments
  • Chemical Change Experiments
  • Surface Tension Experiments
  • Capillary Action Experiments
  • Weather Science Projects
  • Geology Science Projects
  • Space Activities
  • Simple Machines
  • Static Electricity
  • Potential and Kinetic Energy
  • Gravity Experiments
  • Magnet Activities
  • Light Experiments

Science Experiments By Season

  • Spring Science
  • Summer Science Experiments
  • Fall Science Experiments
  • Winter Science Experiments

Science Experiments by Age Group

While many experiments can be performed by various age groups, the best science experiments for specific age groups are listed below.

  • Science for Toddlers
  • Science for Preschoolers
  • Science for Kindergarten
  • Elementary Science by Season
  • Science for 1st Grade
  • Science for 2nd Grade
  • Science for 3rd Grade
  • Science for 4th Grade
  • S cience for 5th Grade
  • Science for 6th Grade
  • Science for Middle School

fun cool science experiments at home

How To Teach Science

Kids are curious and always looking to explore, discover, check out, and experiment to discover why things do what they do, move as they move, or change as they change! My son is now 13, and we started with simple science activities around three years of age with simple baking soda science.

Here are great tips for making science experiments enjoyable at home or in the classroom.

Safety first: Always prioritize safety. Use kid-friendly materials, supervise the experiments, and handle potentially hazardous substances yourself.

Start with simple experiments: Begin with basic experiments (find tons below) that require minimal setup and materials, gradually increasing complexity as kids gain confidence.

Use everyday items: Utilize common household items like vinegar and baking soda , food coloring, or balloons to make the experiments accessible and cost-effective.

Hands-on approach: Encourage kids to actively participate in the experiments rather than just observing. Let them touch, mix, and check out reactions up close.

Make predictions: Ask kids to predict the outcome before starting an experiment. This stimulates critical thinking and introduces the concept of hypothesis and the scientific method.

Record observations: Have a science journal or notebook where kids can record their observations, draw pictures, and write down their thoughts. Learn more about observing in science. We also have many printable science worksheets .

Theme-based experiments: Organize experiments around a theme, such as water , air , magnets , or plants . Even holidays and seasons make fun themes!

Kitchen science : Perform experiments in the kitchen, such as making ice cream using salt and ice or learning about density by layering different liquids.

Create a science lab: Set up a dedicated space for science experiments, and let kids decorate it with science-themed posters and drawings.

Outdoor experiments: Take some experiments outside to explore nature, study bugs, or learn about plants and soil.

DIY science kits: Prepare science experiment kits with labeled containers and ingredients, making it easy for kids to conduct experiments independently. Check out our DIY science list and STEM kits.

Make it a group effort: Group experiments can be more fun, allowing kids to learn together and share their excitement. Most of our science activities are classroom friendly!

Science shows or documentaries: Watch age-appropriate science shows or documentaries to introduce kids to scientific concepts entertainingly. Hello Bill Nye and the Magic Schoolbus! You can also check out National Geographic, the Discovery Channel, and NASA!

Ask open-ended questions: Encourage critical thinking by asking open-ended questions that prompt kids to think deeper about what they are experiencing.

Celebrate successes: Praise kids for their efforts and discoveries, no matter how small, to foster a positive attitude towards science and learning.

What is the Scientific Method for Kids?

The scientific method is a way scientists figure out how things work. First, they ask a question about something they want to know. Then, they research to learn what’s already known about it. After that, they make a prediction called a hypothesis.

Next comes the fun part – they test their hypothesis by doing experiments. They carefully observe what happens during the experiments and write down all the details. Learn more about variables in experiments here.

Once they finish their experiments, they look at the results and decide if their hypothesis is right or wrong. If it’s wrong, they devise a new hypothesis and try again. If it’s right, they share their findings with others. That’s how scientists learn new things and make our world better!

Go ahead and introduce the scientific method and get kids started recording their observations and making conclusions. Read more about the scientific method for kids .

Engineering and STEM Projects For Kids

STEM activities include science, technology, engineering, and mathematics. In addition to our kids’ science experiments, we have lots of fun STEM activities for you to try. Check out these STEM ideas below.

  • Building Activities
  • Self-Propelling Car Projects
  • Engineering Projects For Kids
  • What Is Engineering For Kids?
  • Lego STEM Ideas
  • LEGO Engineering Activities
  • STEM Activities For Toddlers
  • STEM Worksheets
  • Easy STEM Activities For Elementary
  • Quick STEM Challenges
  • Easy STEM Activities With Paper  

Printable Science Projects For Kids

If you’re looking to grab all of our printable science projects in one convenient place plus exclusive worksheets and bonuses like a STEAM Project pack, our Science Project Pack is what you need! Over 300+ Pages!

  • 90+ classic science activities  with journal pages, supply lists, set up and process, and science information.  NEW! Activity-specific observation pages!
  • Best science practices posters  and our original science method process folders for extra alternatives!
  • Be a Collector activities pack  introduces kids to the world of making collections through the eyes of a scientist. What will they collect first?
  • Know the Words Science vocabulary pack  includes flashcards, crosswords, and word searches that illuminate keywords in the experiments!
  • My science journal writing prompts  explore what it means to be a scientist!!
  • Bonus STEAM Project Pack:  Art meets science with doable projects!
  • Bonus Quick Grab Packs for Biology, Earth Science, Chemistry, and Physics

fun cool science experiments at home

Subscribe to receive a free 5-Day STEM Challenge Guide

~ projects to try now ~.

fun cool science experiments at home

Science Bob

Experiments.

  • Science Fair Ideas
  • Science Q&A
  • Research Help
  • Experiment Blog

WHY NOT TRY A FUN SCIENCE EXPERIMENT RIGHT NOW?

Here’s list of great science experiments with instructions that you can do right at home or at school. In order for your science experiment to be safe and successful, be sure to:

  • Get your parent’s or teacher’s permission, and their help
  • Follow the directions as written

Building a Hovercraft – Video

The egg drop challenge, make ice cream in a plastic bag, build a hovercraft you can ride, eggshell geode crystals, build a soap powered model boat, a density experiment you can drink, make your own rock candy, build a fizz inflator, make a levitating orb, blobs in a bottle, fantastic foamy fountain, build a film canister rocket, the exploding lunch bag, make your own volcano, bend water with static electricity, a color symphony, make a paperclip float, blow up a balloon with yeast, how to make slime – method 1, see some optical illusions, make an electromagnet, try some lava in a cup, make a balloon rocket.

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STEAM Powered Family

20 Best Science Experiments At Home

Whether you are homeschooling or just stuck at home looking for something educational and fun to do with the kids, science experiments are a fantastic choice! Not only do kids love doing these science experiments, but they are learning valuable scientific methods, vocabulary and processes that can help them throughout their lives.

Science Experiments To Do At Home

What you will discover in this article!

Doing Science At Home

Disclaimer: This article may contain commission or affiliate links. As an Amazon Influencer I earn from qualifying purchases. Not seeing our videos? Turn off any adblockers to ensure our video feed can be seen. Or visit our YouTube channel to see if the video has been uploaded there. We are slowly uploading our archives. Thanks!

Lately this has become a very common theme.

Kids are bored. They really want something to do. Something interesting, exciting and fun!

Parents are trying to find ways to entertain and educate their children.

Homeschooling has become incredibly popular, but parents are struggling to find cool science experiments to do at home. Something that is suitable without breaking the bank when it comes to supplies, won’t destroy their home, and that will actually teach their kids about chemistry, biology and physics.

So with that in mind, here are the top 20 Science Experiments to do at home as chosen by not only me, but the readers here at STEAM Powered Family!

The Best At Home Science Experiments

In selecting which experiments ranked as the absolute BEST science experiments to do with your kids at home we had a few different criteria.

  • They needed to be popular! These experiments are tried and true, and have loyal following of readers that LOVE doing them. Once you try them, you will know why STEAM Powered Family readers voted these as their favourite science experiments!
  • Supplies must be relatively easy to source. In most cases you will likely have all the materials you need at home right now. Where you need to order or purchase a few supplies, they are readily accessible and links to purchase are included.
  • They must be easy to do, with logical, easy follow directions. We are all overwhelmed. No one wants an experiment that is complex and confusing.
  • The experiments need to be adaptable to wide variety of ages, grades, abilities and interests.
  • The lessons need to be interesting! In all of our science experiments and STEM activities, we include a scientific explanation that either your children can read themselves, or you can read and use to help explain the experiment.
  • They need to be FUN!

With that in mind, here are our top 20 picks for the BEST science experiments to do at home with your kids!

Baking Soda and Vinegar Experiments

There are so many cool experiments you can do with these pantry staples. Yes, you can do a standard volcano, but you can also hatch dino eggs, create fireworks, set off explosive bottle rockets and more! You can keep your kids busy experimenting for a ages with all of our baking soda and vinegar ideas. Get your hands on some bulk vinegar and baking soda and get experimenting!

Baking soda and vinegar experiments

Oobleck is like slime, but much more fascinating and sciencey! Oobleck is a non-Newtonian Fluid that becomes solid under pressure, and liquifies when pressure is removed. It is fascinating, and we have a number of different recipes, so you can find the one that uses whatever you have available in the house.

A year of Oobleck projects, recipes and activities for the classroom

Make a Compass

This science experiment is really cool and a wonderful tie into geography and social studies lessons. Kids learn how to make a compass with materials from around the house.

DIY compass

Make a Lava Lamp

With 5 different ways to make a Lava Lamp, it’s no wonder our readers rate this as one of their favourite activities! Kids are fascinated by the chemical reaction that causes the mesmerizing bubbles to bob up and down in a science driven lava lamp experiment.

Against a white background a mason jar has dark and light green liquids with bubbles in dark green going through the light green layer in a lava lamp style. Overlay text says How to Make a Lava Lamp

Grow Crystals

This is one of the most beautiful experiments we have done and always gets rave reviews from readers. Growing crystals is a wonderful science experiment that has fantastic ties to studies in geology. You can also grow edible crystals. Plus the results… STUNNING!

Crystal Growing Science Experiment

Ready for a fun, giggle-fest science experiment? In this science experiment we are removing the shell of a raw egg! The result is a bouncy, colourful egg. This science experiment is the perfect compliment to a study of biology and reproduction as you can also use this experiment to teach the parts of the cell and egg.

Square image showing naked eggs in a rainbow of colors

Lemon Battery

You could make a battery with lemons, squash, pumpkins, potatoes, there are lots of options! But the lemons are by far the most popular battery project. You will need some supplies, but once you have those supplies you can reuse them in lots of circuit building activities. Plus, once you are finished making your lemon battery, you can make lemon volcanoes!

Learn all about electricity, batteries, power and more by building a Lemon Battery in this science experiment

Wingardium Leviosar

Whether you are a fan of Harry Potter or not, this experiment with magnets is a hit with kids. It’s like magic as they make a feather levitate!

Wingardium Leviosa Science Experiment Make A Feather Levitate

Walking Rainbow

This classic experiment is a beautiful demonstration of primary and secondary colours, while also learning about the fascinating science behind capillary action. All you need to start your rainbow walking is cups/jars, water, food colouring and paper towels!

The Walking Rainbow science experiment should have been easy, but due to a mistake we discovered a fascinating capillary action and natural balance project.

Make Bioplastics

Making bioplastics is an experiment that is a HUGE hit with older kids as part of their studies in polymers and environmental sciences. We have made bioplastics with both milk and gelatin, so you can pick which one to tackle based on the supplies you have on hand. Wonderful for helping kids understand how we can make plastics, and the challenges of making plastics, without fossil fuels.

How to make hard, clear plastic science experiments for kids

Build a Heart Model

This engineering project is a fantastic way to do some studies into biology and how the heart functions. Using recycled bottles, straws, a bit of playdough and water, you can have your model pumping in no time!

This Heart STEM activity to build a functioning heart model uses all 4 STEM pillars - Science, Technology, Engineering and Math. Kids will spend some time learning about their own heart rates, then how blood flows through the body. For the exciting conclusion engineer and build a functioning model of a beating heart.

Skittles Experiment

A simple, yet timeless experiment. Kids of all ages love making these gorgeous images using nothing but candy, water and the magic of science. We also used this as a chance to explore van Gogh and fluid dynamics.

Skittles Experiment for the Science Fair inspired by Starry Night

So easy, yet so amazing! Magic Milk is another classic experiment that is as simple or as complex as you want to make it. I did this with my middle school kids and we had a blast exploring how the fat content of our milk affected the explosion of colours!

magic milk in 33% cream with color fractal explosions

Slurpee Science

Heat transfer is a fascinating science to explore with your kids. If you want to make this a more serious scientific study, you can focus on the effects of salt on ice, but we like to up the fun, so we turned it into a slurpee making science project. Kids love that delicious treat made with science!

Sweet slurpee science is a fantastic activity for kids, with a tasty result they will love. This simple heat transfer experiment is perfect for all ages.

Elephant Toothpaste

Elephant Toothpaste classic experiment creating a fantastic foamy fountain that can be done safely at home using easy to source supplies and has massive wow factor for students.

Elephant Toothpaste

Make Water Rise

Another science experiment that is a little bit like magic! Kids will learn how to create a vacuum and make water magically rise into a container. So cool!

Why Does Water Rise? Best Science Experiments for Kids!

Balloon Races

Kids got ants in their pants? Need something that is educational and will help them burn energy? Balloon races are the answer! Kids will explore physics while having a blast running about and cheering on their balloon races!

Exciting, hands on physics activities that explore Newton's Laws of Motion. An inquiry based lesson plan to facilitate deeper learning and retention.

Build a Water Clock or a Windmill

Both of these projects involve some engineering and of course science but they also have some fantastic book tie ins. I LOVE projects inspired by great books!

Water Clock STEM Activity

Build a Salt Circuit

Salt circuits are a great way to introduce kids to experiments with electricity and circuitry. The supplies are minimal, and it teaches kids excellent critical thinking and problem solving skills. Plus you can make it extra fun with a glow circuit option!

Glow Salt Circuit STEAM Activity

Build a Catapult

A favourite that captures the excitement of every generation, and was a MUST do in our top 20 science experiments is… building catapults! We work in a little extra physics and math by turning ours into games where we need to hit targets. A definite must do for all kids.

Catapults engineered from popsicle sticks

These are 20 of our BEST picks for science experiments to do at home with your kids. This list though is far from exhaustive. Once you find something that interests your kids, search our site and see what other fun experiments you uncover. We have hundreds of experiment ideas all just waiting to inspire your kids!

Join our mailing list and we will send you even more ideas to inspire your learning!

Best at home science experiments

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100+ Easy Science Experiments for Kids To Do at Home (Using Materials You Already Have!)

kids looking at science experiment reaction

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Easy Science Experiments for Kids | Use household materials and ingredients for these fun science projects that cover experiments with chemistry, candy, water, weather, life science, physics and states of matter. The best list!

Looking for fun science experiments to do at home with your kids? We’ve compiled the ultimate list of cool science experiments for kids – most of which can be done with materials you already have on hand!

Children are naturally curious about the world around them, but explaining scientific concepts without a physical demonstration can be confusing, and well, just not fun! We’ve found the best way to teach science is with simple science experiments that provide hands-on learning opportunities – making concepts more accessible, and most importantly, extremely fun and memorable for kids.

We’ve scoured the web to pull together an epic list of the best easy science experiments you can do at home with your kids. Whether you have preschoolers starting at square one, or tweens or teens looking for the ultimate Science Fair project idea, this list has it all – ranging from weather, water and physics experiments, to chemical reactions and explosions (always a kid favorite!).

And you won’t have to make a special trip to the craft or hardware store – almost all of these fun science experiments use common household ingredients that you probably already have at home. Score!

So what are you waiting for – dive right in and have some science fun!

PIN for when you’re ready to perform a fun science experiment:

fun cool science experiments at home

Science Experiments using Chemistry (Hello, Explosions!)

Your kids will have a blast watching how different materials react and change with these simple chemistry experiments – there’s tons of bubbly explosions, fizzy reactions and rainbow creations to choose from!

fun cool science experiments at home

(1) These Oozing Pumpkins are sure to bring lots of laughs from your young scientists as you create overflowing reactions from baking soda and white vinegar. (via Little Bins for Little Hands)

(2) Or swap the pumpkin for a lemon to create a miniature volcano right in your kitchen with this Lemon Volcano . (via The Best Ideas for Kids)

(3) Go big or go home with this incredible Watermelon Volcano experiment where you just need a few simple materials including baking soda, dish soap, vinegar and a little bit of food coloring. (via Preschool Play & Learn)

(4) We love this colorful twist on the classic Baking Soda and Vinegar Reaction . It just never gets old! (via Crafts by Amanda)

(5) Grab a baking sheet and try this Fizzing Colors activity to make a bubbly piece of art! (via Mom Wife Busy Life)

(6) A fun Rainbow variation on the classic Baking Soda and Vinegar experiment that is sure to make kids smile. (via The Best Ideas for Kids)

(7) Make these amazing Magical Color Changing Unicorn Noodles with cabbage and then squeeze on some lemon to watch the noodles change color! (via Left Brain Craft Brain)

(8) Learn about reactions on a large scale and turn milk into a work of art with this interactive Giant Magic Milk experiment . (via Hello Wonderful)

fun cool science experiments at home

(9) Up the ante and make this Vinegar & Baking Soda Rocket – the chemical reaction can make it fly 30-50 feet into the air! (via 123 Homeschool for 4)

(10) Or try this super cool Chemical Reaction Car – it gets a boost from a fizzy reaction from a base (sodium bicarbonate, aka baking soda) and an acid (vinegar) which mix together and release carbon dioxide. (via Left Brain Craft Brain)

(11) Kids love this simple experiment about Apple Oxidation where they can predict which liquid will keep the apple slices from browning, then test their hypothesis. (via Jennifer Findley)

(12) Ever wonder why the Statue of Liberty is green? Get the answer to that question and learn a little bit about a famous US landmark with this cool Penny Science Experiment . (via The Keele Deal)

(13) Wow your kids by making raisins dance! This Dancing Raisins chemical experiment requires minimal ingredients (water + baking soda) but gets maximum results. (via 123 Homeschool 4 ME)

(14) What happens if you drop an egg? It cracks, right? But what if you drop a bouncy egg?!  Learn how to make Bouncing Eggs with this fun kitchen experiment. (via 123 Homeschool 4 ME)

(15) It’s an old classic, but it’s still fun to do – try to fit a hardboiled egg into a glass jar with this Egg in a Bottle experiment. (via Left Brain Craft Brain)

(16) Practice fire safety while learning about the relationship between oxygen and fire with this incredibly simple Fire Safety Experiment . (via Mama Smiles)

(17) Impress your kids with this cool Smoking Fingers Trick that makes it look like your fingers are on fire as smoke rises from them! And yes, it’s best to leave this one to the grown-ups for demonstration. (via Left Brain Craft Brain)

(18) Kids will enjoy watching these balloons inflate “on their own” in this fun Balloon experiment . (via All for the Boys)

fun cool science experiments at home

(19) With a few ingredients from your pantry, you can head outside and try this Exploding Sidewalk Chalk , because who doesn’t love messy explosions?! (via Hess Un-Academy)

(20) How do elephants keep their teeth clean? With Elephant Toothpaste of course! This is one of the best science experiments for kids of all ages – from preschoolers to teens. All it takes is hydrogen peroxide, dry yeast, dish soap and food coloring to make this super cool foamy reaction. (via Teach Beside Me)

(21) Kids (and parents) will enjoy seeing the “lava” flowing in this fun experiment where you can Take a Look Inside of a Volcano ! (via 123 Homeschool 4 Me)

(22) How pretty are these Crystal Flowers ? They’re a craft and science experiment all in one! (via Preschool Play & Learn)

(23) Make your own sweet treat, with this Fizzy Sherbet and learn the science behind why it tickles your tongue. (via Go Science Kids)

(24) Grab all your dull pennies and task your little scientists to try different solutions to determine How to Clean Pennies , then learn why some solutions work better than others. (via Gally Kids)

Weather Science Experiments for Kids

Why is it rainy one day and sunny the next? What causes thunder and lightning? How do clouds form? 

The weather is always changing and easily observable by kids. That makes weather experiments not only super fun, but incredibly relevant for children of all ages. Explore weather-related science with these easy experiments:

fun cool science experiments at home

(1) Have fun creating your very own rain clouds using shaving cream and food coloring with this Rain Cloud in a Jar activity. (via The Best Ideas for Kids)

(2) If you’ve got a marker and a plastic zipper bag, your kids will love getting to watch the water cycle in action by creating their very own Water Cycle in a Bag . (via Playdough to Plato)

(3) Or simply use a glass bowl and some ice cubes for a Water Cycle Experiment on the kitchen counter! (via Taming Little Monsters)

(4) Alternatively, reuse plastic bottles for a hands-on Water Cycle Experiment . (via 123 Homeschool 4 ME)

(5) Now that you know all about the water cycle, why not Build Your Own Rain Gauge ? (via Nurture Store)

(6) Learn what happens when warm air rises and cool air sinks with this colorful simple experiment. (via Mom Brite)

(7) Kids will love watching a cloud form and escape when you Create a Cloud in a Water Bottle . (via Playing with Rain)

(8) If you don’t have an empty water bottle lying around, you can check out this post to create another billowing cloud using a mason jar . It is so exciting to watch the clouds roll out of the jars! (via Little Bins for Little Hands)

fun cool science experiments at home

(9) This Tornado in a Jar is one of the most classic science experiments and is always a hit with kids. (via Natural Beach Living)

(10) Light a fire and learn about how heat moves from the Earth in this Observing Conduction experiment. (via Learn, Play, Imagine)

(11) If it’s too cold to go out and play, make the most of your time inside with this Snowstorm in a Jar . (via Taming Little Monsters)

(12) You can create your own lightning spark at home with static electricity by using just a balloon and a metal spoon! (via Learn, Play, Imagine)

(13) Have you ever wondered how hail forms? Well, you’re in luck! Grab your hair dryer for this Understanding Hail activity . (via Playing with Rain)

(14) Watch wind create energy by Making a Pinwheel.  (via Science Sparks)

(15) Your kids will love learning about ice caps and polar regions with this fun sensory Melting Polar Ice Caps science activity. (via Science Sparks)

(16) And if that’s not enough snow, you can kick it up a notch with this Avalanche Experiment . (via A Dab of Glue Will Do)

(17) Grab some sidewalk chalk on a sunny day for a Human Sundial Experiment . (via Rhythms of Play)

(18) Make your own Rainbow and learn about refraction and dispersion of light. (via Rookie Parenting)

Easy Science Experiments with Candy

Adding candy makes anything more exciting for kids (or at least more sweet!), and these cool candy science experiments are no exception.

These experiments are easy, fun, and a great way to use up any extra candy that might be hanging around after the holidays! 

fun cool science experiments at home

(1) Create a rainbow on your plate with this stunning Easy Skittles Experiment . (via The Best Ideas for Kids)

(2) Now this is an experiment that kids will get excited about! Make your own Homemade Rock Candy while learning about the crystallization process. (via Better Life Blog)

(3) Explore chromatography, a technique for separating difference substances (in this case, candy and dye), with this cool Candy Chromatography kid-friendly experiment. (via Mama Miss)

(4) Learn about osmosis and watch gummy candy magically grow with this simple Gummy Bear Science Experiment . (via Playdough to Plato)

(5) Does your child like to collect rocks? Why not let them dig deeper by making these Edible Sedimentary Rocks . (via Rainy Day Mum)

(6) Watch your kids get excited as you make Pop Rocks blow up a balloon in this epic Pop Rock Science Experiment . (via 123 Homeschool 4 ME)

(7) While many people either love or do not love bright marshmallow Peeps, everyone will love learning what makes them dissolve in this Dissolving Peeps experiment. (via A Dab of Glue Will Do)

fun cool science experiments at home

(8) If your candy has transparent colored wrappers, you can save them to learn about color mixing in with this fun color science project . (via Kids’ Craft Room)

(9) There are many ways to learn about the human body, but we’re pretty sure that the sweetest way is with candy. Kids of all ages will love making this Candy DNA Model . (via Science Sparks)

(10) Your kids won’t be the only wiggle worms in the house with these fun Dancing Frankenworms . (via Playdough to Plato)

(11) Learn how powerful the sun can be with these DIY Solar Oven S’mores . We bet you can’t eat just one! (via Desert Chica)

(12) Your little scientists will LOVE this Mentos Geyser which will teach them what happens when carbon dioxide in Soda meets a Mentos candy, while putting on quite the display! (via I Can Teach My Child)

(13) Usually we’d advise that kids stay far away from broken glass – unless, this is, it’s this yummy Edible Glass ! (via Go Science Kids)

(14) This is a simple science experiment and a magic trick! Find out what happens to sugar when emerged in warm water with this cool Disappearing Candy Cane Stripes experiment. (via Playdough to Plato)

Science Experiments Using Water

If there is anything that is almost universally fun for kids, it’s playing with water. Try one of these fun water science experiments that are perfect for a rainy day indoors, or for keeping cool on a sunny day!

fun cool science experiments at home

(1) If your little one enjoys all things colorful, they will love this incredible Walking Water Science Experiment – and all you need are paper towels, water and food coloring to get started. (via The Best Ideas for Kids)

(2) Your kids won’t believe their eyes when they see cabbage changing colors in this fun Rainbow Cabbage experiment . (via Growing a Jeweled Rose)

(3) Discover how different liquids react together with this easy experiment that creates a colorful Layered Density Column . (via Steve Spangler Science)

(4) Or learn how water travels upward through vines and stems all while creating a beautiful bouquet with these Color Changing Flowers . (via The Best Ideas for Kids)

(5) Observe how different liquids do or do not mix by creating Fireworks in a Jar . (via Hands on Teaching Ideas)

(6) Find out how temperature affects the density of water with this colorful Hot and Cold Water Density experiment. (via STEAMsational)

(7) “Grow” your own Rainbow with this colorful science experiment that highlights chromatography. (via The Best Ideas for Kids)

fun cool science experiments at home

(8) Keep exploring the concept of absorption, diffusion and solubility while bringing out your creative side with this Coffee Filter Process Art . (via Babble Dabble Do)

(9) See how quickly you can move water from one container to the next using sponges in this fun Water Transfer Activity.  (via Live Well Play Together)

(10) Play with water and Bubbles while learning about surface tension and evaporation. (via Hello Wonderful)

(11) Who else had a lava lamp growing up? This DIY Frozen Lava Lamp experiment is not only simple and fun, but brings back the lava lamp nostalgia! (via Hello Wonderful)

(12) Explore the relationship between gas, pressure, and volume in this easy Rising Water Experiment . (via Team Cartwright)

(13) Explore the power of water pressure with this low-prep, big fun Water Suspension Science activity. (via A Mothership Down)

(14) If you are looking for an activity that you can do almost anywhere, take a couple of minutes for this Water Light Refraction Experiment . (via Go Science Kids)

(15) Learn about absorption and expansion by Measuring Water Beads. (via Blue Bear Wood)

(16) Kids will love watching their drawings come to life with these Floating Dry Erase Figures . So cool! (via Go Science Girls)

(17) What will happen if you poke a hole in a bag full of water? Will it leak? Not with this Leak Proof Bag experiment. (via Montessori from the Heart)

Life Science Experiments for Kids

One of our favorite things to learn about is how living things (ourselves included) work. These life science experiments and activities will spark your child’s curiosity about the world around them!

fun cool science experiments at home

Life Science Experiments about the Human Body:

(1) Learn how our heart pumps blood to our bodies with this Heart Pump Model . (via Science Sparks)

(2) Your child can learn how our lungs work by making a Model Lung with simple materials you probably have around the house: a plastic bottle, straw, elastic band, balloons and play dough! (via Science Sparks)

(3) These printable life-sized organs allow kids to study their body anatomy in a hands-on way. (via Adventure in a Box)

(4) Learn all about scabs – what causes them (and why they’re so important not to pick!) by making a Fake Jelly Scab that can then be eaten! (via Science Sparks)

(5) If you’re willing to brave glitter, this Glitter Germs Hand Washing Activity teaches children the importance of thorough hand washing while talking about how germs spread. (via The Soccer Mom Blog)

(6) Or, try this Growing Germs easy science experiment which uses an apple and your own child’s germs to not only teach kids to wash their hands, but all about controls and variables too! (via Playdough to Plato)

(7) Demonstrate how tooth decay happens and how to prevent it by soaking eggshells in various liquids in this Tooth Decay experiment. Is sugar a culprit? A great lesson for kids. (via Sciencing)

(8) This super easy Heart Rate Investigation will teach your kids about their heart, blood circulation and pulse, but also get them moving! (via Science Sparks)

(9) Your budding artists will love this Magic Heart Painting activity. Watch the cardiovascular system appear before their eyes! (via Taming Little Monsters)

fun cool science experiments at home

Life Science Experiments with Plants:

(10) How do different liquids affect plant growth? Find out with this Plant Growth experiment – it’s one of our favorite science experiments and makes a great Science Fair Project! (via Lemon Lime Adventures)

(11) Discuss how plants grow and what they need to thrive by growing a Bean in a Jar . (via Growling a Jeweled Rose)

(12) Or use a plastic bag instead! All you need is a Ziploc baggie, a few beans and a damp paper towel to Grow Beans in a Bag . (via Community Playthings)

(13) Combine engineering and science while learning all about germination with this DIY Sprout House . (via The STEM Laboratory)

(14) Observe plant growth both above and beneath the “ground” by planting bulbs in a clear cup . (via Buggy and Buddy)

(15) Watch how plants respond to sunlight in this super easy Plant and Sunlight Experiment . (via Mama Smiles)

(16) Kids will love learning How Leaves Breathe with this simple plant experiment. (via Edventures with Kids)

(17) Did you know that you can grow vegetables with scraps? Watch your scrap veggies grow new life with a Scrap Garden . (via Hess UnAcademy)

Easy Physics Science Experiments for Kids

Learn how things move with these simple physics experiments for kids. Physics is the branch of science that studies matter, how it moves, and how it interacts – it encompasses the study of motion, light, electricity, magnetism, aerodynamics, and sound.

We’ve found that the best way to explain physics to kids is to skip the explanation and do a hands-on demonstration instead. Use these fun experiments to jump feet first into the world of Physics:

fun cool science experiments at home

(1) First off, a classic Craft Stick Catapult ! This simple activity is a great way to teach about energy cause and effect, as well as simple machines…and you thought you were just going to be launching marshmallows across the room! (via Team Cartwright)

(2) Explore physics and play at the same time with these awesome Pom Pom Shooters . (via Left Brain Craft Brain)

(3) This classic science fair project will teach your kids how to use chemistry to generate an electric current by making a Lemon/Lime Battery ! (via Babble Dabble Do)

(4) Explore the science of sound with this pretty Rainbow Water Xylophone . (via Mama Papa Bubba)

(5) Make a simple Newton’s Cradle out of popsicle sticks, string and marbles to demonstration the conservation of momentum – kids loooove this one! (via Babble Dabble Do)

(6) Send a balloon blasting off and introduce simple physics with these neat Balloon Straw Rockets . (via Preschool Play & Learn)

(7) Grab some plastic bottles and string to make this fun Inertia Zoom Ball – a project kids can learn and play with! (via What Do We Do All Day)

(8) Popsicle sticks, rubber bands and some blocks are all you need to make a Stixplosion – demonstrating chain reactions which you can use to teach about kinetic and potential energy. (via Babble Dabble Do)

fun cool science experiments at home

(9) Make a Salty Circuit to introduce your kids to electricity and how it moves from a battery through a circuit to power an LED. (via Babble Dabble Do)

(10) Demonstrate work and energy with this super cool Paper Airplane Launcher . (via Frugal Fun 4 Boys and Girls)

(11) Visually show the concept of gravity with this easy Gravity Activity with Paperclips . (via Buggy and Buddy)

(12) If you’re feeling particularly ambitious, you can create your own Light Bulb Experiment to see how electricity travels through a circuit. (via 123 Homeschool for Me)

(13) Discover what things are magnetic and vice versa with this fun Magnet Fishing Game . Great for preschoolers! (via Rhythms of Play)

(14) Baseball fans will enjoy this Frozen Baseball Experiment to observe how temperature affects how a baseball travels. (via Our Family Code)

(15) Learn more about inertia with these easy Inertia Science Experiments with Pennies . (via Frugal Fun 4 Boys and Girls)

(16) This awesome Rollback Can is a simple physics project that will amaze your kids and demonstrate potential and kinetic energy. (via Babble Dabble Do)

(17) These 4 Magical Magnet Projects will teach your kids about magnetism, and they’ll be mesmerized by its power! (via Babble Dabble Do)

States of Matter Science Experiments for Kids

All matter is either a solid, liquid, or gas, right? Or is it? And what happens to make some matter change states more easily than others? Kids will love these easy States of Matter science activities where they will get to learn the answers to those questions and more! 

fun cool science experiments at home

(1) This Simple Balloon experiment will teach young kids all about the 3 states of matter with a Hands-on Density test. (via 123 Homeschool 4 ME)

(2) Watch as liquid cream becomes a solid by making your own Homemade Butter . Make sure you taste test it too! (via Playdough to Plato)

(3) And because it’s always a good time for ice cream, see how simple ingredients come together and change state when you make this Ice Cream in a Bag . It’s also a great activity to discuss an exothermic reaction, a chemical reaction that releases light or heat. In this instance, heat is released from the shaking, yet it freezes the cream – science sure is amazing! (via House of Nash Eats)

(4) Fill up balloons with different types of liquid in this fun Water Balloon Science Experiment and then try and predict if they will float or sink in water. (via 123 Homeschool 4 ME)

(5) A messy project that is universally loved by kids – Oobleck ! This Non-Newtonian fluid can act like a solid and a liquid. And you can make it at home as long as you’ve got cornstarch in your pantry. (via The Best Ideas for Kids)

(6) Task your kids to create an insulated box for an ice cube using materials from around the house in this Don’t Melt the Ice experiment. (via Frugal Fun 4 Boys and Girls)

We hope this list of easy science experiments for kids proves that science doesn’t have to be complicated…or boring! With materials you already have at home, you can create a memorable learning experience, and you definitely don’t need a lab coat to watch science come alive!

RELATED: Looking for more fun indoor activities to keep your kids busy? Check out 87 Energy-Busting Indoor Games & Activities for Kids (because cabin fever is no joke!)

What’s your favorite science experiment? Let us know your favorites in the comments below!

Mary Leigh - what moms love

Mary Leigh is a stay-at-home mom to 3 fun and active boys. She started her blog,  Live Well Play Together , as a creative way to encourage moms to celebrate the simple, everyday moments in motherhood.  You can most often find her writing about kids’ activities, thoughts on motherhood, and simple ideas for family fun.  Follow her on  Pinterest ,  Instagram ,  Facebook , and  Twitter for fun ideas to bring a little fun to your everyday!

Mary Leigh

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15 Cool Science Projects Your Kids Can Do at Home

15 Cool Science Projects Your Kids Can Do at Home

Author

Read stories how our founder Albert turned his childhood passion into CircuitMess, and get exciting DIY project ideas you can do with your kids at home for free.

Table of content

You're trying to find fun science experiments for your kids? Luckily, there are hundreds of different science projects for kids - and a lot of them can be done with just a few simple ingredients.

To help you get your kids involved in simple science experiments, we've created a list of the best science experiments for kids that can be done with ingredients you already have at home.

Almost every one of these science experiments can be finished in less than an hour (there are some lengthy ones), and the ingredients are already at your disposal.

From dish soap to vegetable oil and baking soda - these simple ingredients will help your kids learn all about the scientific method. What's even better, these easy science experiments are great for inspiring them to dive deeper into STEM sciences - and we 100% support that!

Now, without further ado, let's dive in.

Why do kids love doing science experiments?

There are several reasons why kids (and often parents) love to dive into a science experiment.

Firstly, these experiments are fun. Often, there are colorful chemicals involved, some interesting reactions can be seen, and the outcomes are surprising in most cases.

And these fun science experiments usually stoke the kids' creativity and problem-solving skills. In one of these 20 kid friendly science experiments, they'll need to either design and build something, form their own assumptions, and fix issues that may occur during the experiment.

These are perfect scenarios for young kids, where they'll learn what makes our world and how they can shape it.

The biggest reason behind this love for science projects is kids' natural curiosity. These simple at-home science experiments provide kids with opportunities to discover how things work. They'll ask you questions, they'll carefully observe what happens, and even probably come up with their own explanations.

The main point to make here is that kids are endlessly creative and curious. They only need guidelines and the materials, the rest of the magic is up to them.

How can fun science experiments help kids develop?

Engaging kids in science projects from early age can have a tremendous impact on their life skills.

Whenever there is something they don't understand, they'll question it, investigate it, do some research, and come up with their own explanations. Their imagination is unlimited, but they still need guidance. And science will help them look at the world through a different lens.

Here's what to expect if you engage your kids in science activities.

Their research skills improve

Science experiments are hugely beneficial for young kids. They get the opportunity to improve their research skills and to understand what kind of research is required for a different subject.

You may think that this mainly applies to science and other STEM fields, but it's much more applicable than that.

Well-developed research skills will help your kids master subjects like history, economics, and many other. The skill to do their own research and question their findings is invaluable.

Their creativity is fueled

Even though creativity may not be at the top of our mind when we mention science projects for kids, such experiments work wonders for broadening your kids' horizons.

Whenever they face a new challenge, they'll be able to look at the problem from a different angle, deal with a tough situation, and discover a new way to succeed.

They can think outside the box

Thinking outside the box is one of the greatest benefits of early STEM education. If a science experiment fails, kids will have no option than to look for a new solution.

This could mean starting the experiment over from the beginning or adjusting the process a bit. If they fail once, they'll try again. And if that fails, they'll give it one more go. This rinse-and-repeat process will continue as long as they don't succeed with their experiment.

Such out-of-the-box thinking and perseverance are incredibly helpful in all aspects of life, not just science experiments.

They start paying attention to details

Detail-oriented thinking is something all of us can benefit from. And by engaging your kids in cool science experiments and teaching them simple science concepts, they can develop that skill early in life.

Whether your kids are researching a new science method, experimenting with a simple science project, or learning new skills - the attention to detail is what helps them discover solutions and solve problems.

15 coolest science projects for kids to do at home

To help you and your kids get started with some of the best science experiments, we've rounded up the 15 coolest science experiments. They will help you teach kids about different chemical reactions, air pressure, and many other scientific phenomenon.

Let's dive in.

#1 Create a homemade lava lamp

Let's start with a classic science experiment. The homemade lava lamp experiment is one of the easiest one on the list - and it's a huge hit with young kids.

In this experiment, they'll learn about the density of different liquids and about some basic chemical reactions.

Lava lamp is one of the best science experiments for kids

Image source: https://www.mkewithkids.com/

What do you need for this experiment?

Here's a list of tools and ingredients you'll need:

A clear glass or a transparent container (glass jar or a drinking glass)

Cooking oil (vegetable oil or canola oil)

Food coloring

Baking soda

Steps to complete the experiment

Step 1: First, set up the workplace and find a clean, flat surface you can work on. Also, be sure to place some old newspapers or a tray underneath the glass.

Step 2 : ill your glass container about one-quarter full with water.

Step 3 : Add a dew drops of food coloring in the glass - the color choice is up to you.

Step 4 : Fill up your colored water container with cooking oil and fill it to the top. Leave just a small gap on top.

Step 5 : When the colored water and oil separate, add a pinch of baking soda.

Once you do this, you'll see bubbles rising to the surface of the oil, even carrying some of the colored water to the top. Once these bubbles reach the top of the container, they'll pop and the colored water will sink back down.

This creates a simple lava lamp effect, with colorful bubbles going up and down in the container.

P.S. Try experimenting by adding even more baking soda, pay close attention to how the number and size of bubbles changes.

#2 Grow your own crystals

This science experiment is one of the sweetest ones. And that's for a good reason, since sugar is our main ingredient. The best thing about this experiment is - these crystals are 100% edible (and tasty!)

These sugar crystals will form as a result of a supersaturated solution, containing more sugar than could be dissolved in water under normal conditions. The sugar molecules, in this case, have a higher chance of bumbing into one another since there is less space for them to move around.

Then the molecules start sticking together. And if there's something these molecules can cling to, crystals will form in no time. This simple experiment is fun and the end result is edible, so - why not give a try?

Grow your own sugar crystals in a simple science experiment for kids

Image source: https://littlebinsforlittlehands.com/

Here's a list of basic supplies you'll need:

Edible glitter

Step 1: First, cut a piece of string that's around the same length as your glass jar. Tie one end of the string to a straw and tie a know in the other end. Get the string wet and coat in sugar. Once that is done, let it dry overnight.

Step 2: Add 4 cups of sugar and 1 cup of water into a saucepan. Heat the saucepan until water starts boiling. By heating the water, sugar will dissolve and we'll be a step closer to making a supersaturated solution.

Step 3 : Stir until the sugar is dissolved, but don't heat it too much. Keep the temperature at around 100°C

Step 4 : Remove the sugar from the heat and pour it into your glass jar. Add edible food coloring and some edible glitter.

Step 5 : Lower the string into the glass jar and leave it for a week. Once the sugar crystals are fully formed, remove them and place them on paper towels. They'll need to dry for a few hours.

And that's it! You can now use a magnifying glass or even a microscope to inspect your crystals. Give it a shot and think about what can you see with your eyes, and what you can see with a magnifying glass.

#3 The classic baking soda and vinegar volcano

The baking soda and vinegar volcano is a classic science experiment that easily captivates kids' attention, regardless of their age. And once they see it erupt once, they'll want to do it again.

Luckily, you'll need only some basic materials and just a few minutes to prepare.

Baking soda and vinegar volcano - easy science experiments for kids

Image source: https://www.treehugger.com/

To do this, you'll need just a few simple ingredients:

Plastic cup

Food coloring (or washable paint)

Step 1: Pour water into your plastic cup, fill it about 2/3 full

Step 2: Add 4 tablespoons of baking soda, 1 tablespoon of dish soap, and a bit of food coloring. We recommend you do this outside, since it's a bit messy experiment. Or use washable paint instead of food coloring if you'll do this inside.

Step 3 : Stir the ingredients in the plastic cup and start pouring vinegar until it starts foaming.

The more vinegar and baking soda you add, the more intense the chemical reaction will be. And if you want to build something even bigger with your kids, try using clay or plasticine to build a small volcano around your plastic cup. It will look much cooler!

#4 Elephant toothpaste

Elephant toothpaste is easily one of the best science experiments for kids. They'll get to learn about catalysts, chemical reactions, and have a lot of fun doing it. Keep in mind, this science experiment requires an adult involved, since a harmful liquid is an essential ingredient.

It's a simple science experiment that requires just a few simple materials you already have at home - and one interesting liquid you'll probably need to buy.

Elephant toothpaste - easy science experiments for kids

Image source: https://www.weareteachers.com/

Here's a list of ingredients you'll need:

Plastic soda bottle

20-volume of 6% solution hydrogen peroxide liquid

Liquid dish soap

Safety goggles (highly recommended)

Step 1: The first thing you should do is - put on some protective eyewear. Hydrogen peroxide can irritate both skin and eyes, so it should be best to avoid these problems from the start.

Step 2 : Now, add 8 drops of food coloring and 1 tablespoon of dish soap into the soda bottle and mix the ingredients.

Step 3: In a separate plastic cup, mix warm water and yeast for around 30 seconds.

Step 4 : Once you've done that, pour the yeast water mixture into the bottle.

And now, this simple chemical reaction takes place and the foam starts forming quickly. The yeast worked as a catalyst to remove oxygen from the hydrogen peroxide. Since a lot of oxygen was removed very quickly, a lot of bubbles appeared.

You'll notice that the bottle got really hot. This happened since this is an exothermic reaction, meaning the heat from this mixture gets released into the surroundings.

And when you're finished with this science project, you can safely pour the foam down the drain. It's made up of only water, soap, and oxygen, so there will be no harm whatsoever.

#5 The Rainbow Jar

The rainbow jar experiment is one of the easy science experiments that don't require a lot of preparation. It's great for teaching kids about different liquids, their densities, and get them interested in science activities.

The ingredient list is extremely simple and it includes mainly everyday materials you already have at home.

The Rainbow Jar - easy science experiments

Image source: https://www.superteacherworksheets.com/

Here's what you need for this science experiment:

A clear glass or a transparent container (look for tall and narrow containers)

6 small cups

Cooking oil

Blue food coloring

Purple grape juice

Step 1 : The first thing you should do is prepare all the liquid you'll need. Pour each one into a separate small cup. Each of them is going to represent a different layer of the rainbow.

Step 2: Start by pouring honey at the bottom of the glass. Keep in mind, there will be 5 more liquids in this glass, so don't fill up too much. Honey will serve as a red layer of the rainbow.

Step 3: Next, gently pour dish soap on the top of the red layer. For better precision, you can use a pipette, but if you don't have one at hand, it's no problem. Dish soaps come in various colors, but if possible, an orange one would work great with this experiment. the top of the previous layer, add the cooking oil. It will form a yellow layer.

Step 4 : Now, pour water slowly on the top of the yellow oil layer. As you add water, be cautious not to disturb the layers below.

Step 5 : Once you've poured the water, add just a few drops of blue food coloring to the wayer layer.

Step 6: Finally, pour purple grape juice on the top of the blue layer.

When all the layers are in place, you'll have a beautiful rainbow jar in front of you. This is a great opportunity to teach kids about liquid density and why some colors mix while others stay separate.

#6 Host an egg drop

This simple experiment is a huge hit with kids - and definitely one of our favorite science experiments on this list. It will help you engage your kids in a thrilling activity that challenges kids to learn about gravity, force, and even some basic principles of engineering. Overall, a great STEM activity!

In this science experiment, kids will need to protect an egg from cracking when dropped from height. It's not an easy thing to do, but it's most certainly fun and entertaining. This is a great opportunity to gather your kids' friends and have them engage in this activity together.

Egg drop is an easy science experiment for kids

Image source: https://buggyandbuddy.com/

Here's a list containing the everyday materials you'll need:

An egg (probably a few)

Bubble wrap

Cotton balls

Rubber bands

Step 1 : Start by choosing your protective materials. You don't need to choose all of them from the list above, of course. Mix different items from the list to design a safeguard for your egg.

Step 2 : Carefully place the egg in the center of your materials and start wrapping them around the egg. Make sure that the egg is well-protected on all sides (rubber bands and tape are quite useful for this.)

Step 3 : And once you're satisfied with the egg armor, trim any excess materials with scissors.

Step 4 : Finally, here's the exciting part. Find a space around your home (preferrably outdoors) to perform the egg drop. Now, all you need to do is - hold the egg above the chosen spot and let it go.

Now, did it crack? What worked well? What could be improved in the next try? Maybe different materials? Or better material distribution? The kids learn about engineering principles right on the spot, they'll quickly adapt, and create a better version in no time.

So, make sure you have enough of the protective materials - and enough eggs!

#7 Create Oobleck - a non-Newtonian liquid (you have the ingredients at home)

Prepare to be amazed by Oobleck, a non-Newtonian liquid that can be created much faster and easier than you'd think. It defies the laws of classical physics and for that reason alone, it's on our list of favorite science experiments for kids.

It behaves as both liquid and solid, but it's actually neither. It's one of the best hands-on science experiments for kids, regardless of their age. Even us adults get surprised when we figure out that we can create non-Newtonian fluids in just a few minutes.

Oobleck - easy hands on science experiments

Image source: https://hip2save.com/

Here's what you'll need to create Oobleck:

Mixing bowl

Food coloring (if you want it in different colors)

Step 1: Take a mixing bowl and fill it with water and cornstarch. If you're using 1 cup of water, use 2 cups of cornstarch. This 1:2 ratio should always be applied.

Step 2 : Mix in a few drops of food coloring before combining water with cornstarch (this is optional.)

Step 3 : Stir the mixture thoroughly until all ingredients are well-mixed. If the consistency seems to be too thick, add some water. Or if seems to be a bit runny, add more cornstarch.

And that's it - you've just created a non-Newtonian liquid! Notice how it works - if you apply gentle force, it will feel like a liquid. But if you try to, let's say, hit it or squeeze it, it will behave like a solid.

While it is extremely fun to experiment with, Oobleck can make things a bit messy. It's best to keep it away from carpets and other surfaces that may be hard to clean.

Also - Oobleck can be reused. Just store it in an airtight container and use it whenever you want. Oobleck shows us how science experiments can at the same time be exciting and puzzling - and that's why we love science.

#8 Set up a Rube Goldberg machine (easier than it sounds)

When we say "Rube Goldberg machine", you may think of it as a complex science experiment, but in reality, it's easier to create than you think. It involves creating a series of simple actions that eventually get combined - and trigger a fun chain reaction.

Here's just an example of what it could look like.

Here's the list:

Household items like dominoes, toy cars, marbles, balls, books, and whatever you can think of

Cardboard ramps (or even wooden ramps)

A lot of imagination

Step 1: Take some time to think about what you want your machine to do. It can be as complex as you like, so the best course of action is to sketch the event sequences on a paper, so you have a rough idea of how it will work.

Step 2 : Gather all the materials! This is step is limited only by your imagination. Think about how each item can be used - dominoes, toy cars, marbles, books, cups, strings, tape, cardboard, wooden blocks, balloons, toy trains, popsicle sticks, plastic cups, rubber bands, kitchen utensils, balls, and so on. There's really no limit.

Step 3 : Now, it's time to set up our first sequence. You'll want to look for a stable starting point first. For example, as a starting point you can use a toy car on a ramp, a marble on a track, or anything similar. And be sure to use tape to secure all items in place.

Step 4 : Before you continue adding ramps, tracks, and other items to your machine, you'll need to test it. After a test run or two, you'll know what needs to be fixed, readjusted, or replaced. Tweak your sequence until it works perfectly.

Step 5: Add as many ramps, tracks, and other household items to your machine. Including more cardboard and wooden ramps will give your objects more momentum - and prolong the sequence. The chain reaction will look even more captivating.

The thing with the Rube Goldberg machine is - it can go on forever. So, take your time, build a huge sequence, and ensure each element leads smoothly into the next one.

#9 Create your own gaming consoles (it really works)

Playing video games as a kid is fun. But building your own gaming console easily tops that.

At CircuitMess, we've created various DIY kits for kids that will help them with science learning, provide them with hands-on STEM experience, and help them gain future-proof skills.

And one of our most fun projects to date is the - DIY gaming console .

Whether you're child is in elementary or middle school, this is the perfect kit for getting them interested in robotics and engineering - at an affordable price!

For this cool project, you'll need to have:

CircuitMess Nibble parts and components

Desoldering vacuum tool (optional)

Solder wick

Unlike with the previous experiments, this one requires a bit more serious equipment. Still, it's easily accessible and you can get all the essentials directly from us in the DIY gaming console bundle!

Building your Nibble gaming console is a complex process, but an enjoyable one.

There are many steps required, so to help make it easier, we've created a build guide for our gaming console .

Visit the link and find out everything you need to know.

#10 Build a robot from scratch

Does building a robot sound cool enough? We're absolutely sure it does!

Wacky Robots are one of our coolest DIY kits for kids aged 7 and above. This simple DIY kit will help teach your kids about electronics and build confidence to tackle other challenges with persistence and tenacity.

This is the perfect hands-on experiment for any kid - there's no previous knowledge or experience required. And you can get all the required parts, components, and guides for $29.99.

There are various Wacky Robots in our DIY subscription, and each month, your kids will get a new science project to complete. So, each month, your kids will have the chance to learn about different aspects of science, engineering, and electronics.

Plus, it's incredibly fun.

To assemble your robot from scratch, you'll need to get the Wacky Robots DIY kit - and that's it! You get all the parts, tools, and components in the box.

There are several steps to building a Wacky Robot. At this moment, we're shipping out DUSTY, a beginner-friendly robot kit that will teach kids about electronics and photoresistors.

To make the entire process easier, here's a step-by-step tutorial on how to build DUSTY!

#11 Magic milk

Unlike the previous two, the Magic Milk is a bit easier one, and definitely one of the classic science experiments for kids.

It's great for teaching kids about chemistry basics and surface tension - and it looks really cool once it's finished.

Let's take a look at what kind of supplies you'll need.

The Magic milk - one of the easy science experiments

For this experiment, you'll need:

Small bowls

Cotton swabs

A tray or a shallow container

Step 1: Pour milk into a shallow tray or container and make sure it covers the bottom evenly.

Step 2 : Add a few drops of different food coloring to the milk (combine various colors to create a more vibrant effect - i.e. blue, yellow, and red food coloring will do the trick)

Step 3 : Dip a cotton swab into the dish soap.

Step 4 : Gently touch the surface of the milk with the cotton swab.

Step 5 : Repeat as many times as you like.

You'll notice that the food coloring will start to move and swirl around, creating stunning patterns. Now, how and why does this work?

Milk contains fat molecules that naturally repel water, so when you add the dish soap, the surface tension of the milk breaks and fat molecules scatter around the container. As the soap touches the surface, it affects the surface differently in each spot.

And just a tip - if you want a more magical effect, try using 5-6 different colors - or even try using complementary colors.

#12 The Skittles experiment

This is one of the easy science experiments for kids - and one of the sweeter ones.

It's a great way for them to learn about solubility and it's simply entertaining, as colors mix on the plate in a magical way.

Toddlers and preschool kids will surely enjoy this one and it takes just a few minutes to perform.

Skittles experiment - one of the easy science experiments for kids

Image source: https://www.science-sparks.com/

Here are all the simple supplies you'll need:

Skittles candy of different colors

A white dish plate

A stopwatch

Step 1: Arrange the Skittles candy in a circle on your white dish plate. Mix different colors to get a more vibrant effect in the end.

Step 2 : Pour warm water over Skittles until they are covered in water. Be careful not to add too much water.

Step 3 : Track time with your stopwatch and look at how Skittles begin to dissolve in the water and spread outwards.

Now, why does this work?

It's incredibly simple. The colored sugar dissolves in water and as the water level rises - colors blend together and create a beautiful rainbow pattern.

#13 Egg and vinegar experiment

This fun experiment will teach your kids about the power of acids and their ability to dissolve calcium carbonate, the main ingredient of eggshells.

Let's go through everything you need to know!

And before we start, check out the image below. On the left, you can see what the egg looks like when the experiment is finished.

Egg and vinegar experiment - one of the easy science experiments for kids to learn about scientific method

Image source: https://www.findingmyselfyoung.com/

Here's the list of ingredients:

White vinegar

Transparent container or a clear glass

Step 1 : Place the raw egg gently into the clear glass and make sure it's fully submerged.

Step 2: Pour white vinegar over the egg until it's completely covered.

Step 3 : Set a timer to track progress of this experiment. Let the egg sit in the glass for the next 24 hours. After some time, you'll notice that bubbles are forming around the egg (that's carbon dioxide!)

Step 4 : Carefully remove the egg from the vinegar in the glass, so you don't break it. Hold it in your hand and feel the difference - it may even feel rubbery. Now, gently rinse the egg under running water to wash off any remaining vinegar.

What's the science behind this super easy science experiment? While vinegar is an acidic solution, the eggshell is mainly composed of calcium carbonate. When these substances come into contact, a chemical reaction occurs, releasing carbon dioxide in the form of bubbles.

This is why the egg gets a bit softer and rubbery, since its primary eggshell component gets broken down.

#14 Create a sundial in your backyard

This is an extremely simple, but clever science experiment for kids where they will learn to tell time just like the ancient civilizations did! It's a great way to get your kid interested in astronomy and timekeeping - and it's fun predicting where the shadows will move throughout the day.

Luckily, you won't need a lot of materials to create a sundial in your backyard - the sun plays the most important part.

Creating a sundial in your backyard - one of the easiest science activities for kids

Here's what you'll need:

A sunny day

Flat surface in your backyard

Small rocks

Clock for reference

Step 1 : Find the perfect, flat spot in your backyard where the sun shines throughout the day.

Step 2: Insert the stick into the ground at that spot and make sure it's firmly fixed and standing straight.

Step 3 : Use your clock to tell the current time and mark the shadow cast by the stick at the moment. This is your starting point.

Step 4 : Return back to the sundial at regular intervals (every hour) and mark the new positions of shadows cast by the stick.

Step 5 : Connect the marked positions of shadows with the stick by drawing a line. Write down what time it was for each position of the shadow.

Once you've done all this, you'll be able to tell time simply by looking at the stick in your backyard. And here's a quick tip - your sundial is the most accurate at noon, so noon could be a great starting point for this experiment.

#15 The Doppler Effect project

The Doppler Effect experiment is perfect to get your kids interested to explore sound and its numerous properties.

This phenomenon affects the pitch of sound waves when a source moves relative to an observer. It's a great way for kids to learn how sound behaves and why.

And the ingredient list for this easy science experiment is incredibly short, so there's really no barrier to start.

How Doppler Effect works - easy science experiments for kids

The image above perfectly explains this phenomenon in a simple manner.

Here's the list of things you'll need:

A whistle or a toy siren

2 meters long rope (approx. 6 feet)

A parent to oversee and help

Step 1: Find the appropriate place for this experiment - somewhere open, where you can walk or run without any hindrance. If you have a larger background, it'll be perfect.

Step 2: If you're the parent helping with the experiment - go stand in one spot while holding the whistle or a toy siren. Your kid will observe sound, while you'll be the source.

Step 3 : Get your kids to stand approximately 10 feet from you and then blow the whistle. Your kids will need to take notice of the sound and how loud is it.

Step 4 : Now, take your whistle and start moving away from the kids while blowing the whistle continuously.

Step 5: Start moving back towards the kids and ask them to interpret what they've heard - how the pitch of the sound changes as the source approaches or moves farther away.

Step 6 : Use a timer to note how long it takes for the pitch of the sound to change as you move away and back towards the kids.

Now, what's the science behind this simple experiment?

The Doppler Effect is a phenomenon that occurs when a sound source is moving relative to an observer. The closer the sound source is to the observer, the more compressed the sound waves get and the pitch is higher.

And it works vice versa. The farther the source moves away from the observer, the more stretched the sound waves get, resulting in a lower pitch.

Bonus science experiment: Build a Batmobile (it’s the real deal)

All science experiments we've gone through in this post are cool in their own way - but none as cool as the CircuitMess Batmobile . if you're wondering - once you build it, you can control it with the Bat Controller or even program the Batmobile to drive autonomously.

How cool is that?!

And there's no need to worry if this will be too complicated for your kids. We've designed the Batmobile so kids aged 7 and above can easily assemble it.

CircuitMess Batmobile - DIY science project for kids

We've made sure that everything you need is in the Batmobile kit. So, once you get the kit, you'll have everything you need to assemble the Batmobile.

To get it done, you'll need to both assemble it and code it.

This is a great opportunity to teach kids about coding and get them interested in engineering.

And to make this process so much easier, we've created separate build, code, and usage guides.

Check out the video below to see exactly what kind of adventure awaits you.

CircuitMess STEM box is everything your kid ever wanted

Science experiments offer kids exciting journeys of discovery and fuel their curiosity and imagination. From magic milk and sugar crystals to lava lamps and Rube Goldberg machines, each of these easy science experiments nurtures your kids' problem-solving skills.

But your kids are ready for even greater challenges.

This is where CircuitMess comes into play. We've created the most exciting thing a young kid could ever want - the STEM box. It's a treasure trove of DIY STEM projects that will help your kids become comfortable with coding and engineering.

Find out what kind of awesome projects wait for you and your kids in our STEM box - and find the one that best suits your kids' interests. Wanna build a music mixer and a sound sampler ? Or building a robot car sounds more interesting?

We've got you covered. Your kids' potential is endless, and we're here to help you unlock it!

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8 Fun Science Experiments You Can Easily Do at Home

fun cool science experiments at home

Looking for a science project to do with kids? These experiments go beyond the trivial and incorporate real-world scientific research.

SciStarter Blog

Around the world, millions of kids are headed back to school in a totally different way. Classes are online. Teachers talk to students in virtual classrooms. And parents are often left looking for new, hands-on science learning opportunities.

We’ve got your back. Here are eight fun and easy science experiments that you can do at home with kids of all ages. What’s more, each of these science projects ties into real-life research efforts through citizen science, where volunteers help experts collect and analyze data.

RELATED: VIRTUAL DISSECTION: ANIMALEARNING FROM HOME

Make Wild Sourdough

fun cool science experiments at home

It seems like the whole world is baking homemade sourdough bread right now. Sourdough took on broad appeal when the baker’s yeast disappeared from store shelves. Unlike other baking projects, sourdough doesn’t need store bought yeast. Instead, it’s made with sourdough starter.

RELATED: FREE SCIENCE EDUCATION E-BOOKS

If you have flour, you can easily experiment with making your own sourdough starter.  Wild sourdough starters  tap into the abundant yeast in our homes and puts them to work making delicious bread. When it comes to science experiments you can do at home, few could be more delicious and rewarding than this one. You’ll also be helping scientists out along the way.

RELATED: BACK TO SCHOOL WITH CITIZEN SCIENCE

The Wild Sourdough Project is a global science experiment that hopes to discover how sourdough starter communities form over time. The team behind the effort is hoping to unravel how factors like geography and different kinds of flour affect the yeast communities. Best of all, the effort has a step-by-step guide that lets you learn how to make your own sourdough starter.

Take Part: Make Your Own Sourdough for Science

Create a Cloud in a Jar

fun cool science experiments at home

Clouds are an important and often overlooked driver of Earth’s temperature. They trap sunlight in, but they also reflect it back into space. That role has climate scientists rushing to study our planet’s clouds, and how they’re changing.  NASA’s GLOBE Observer: Clouds  project taps citizen scientists to provide pictures of the sky, plus observations of cloud cover, type, sky conditions and visibility. That data helps info real science research and verify what satellites are seeing from space.

You can get involved with your kids and enrich the experience by adding lessons about clouds. For example, NASA has added a number of fun and easy ways to learn about climate science and clouds, including science experiments. One of the best related projects is to make a cloud in a jar. This simple science experiment is a powerful way to demonstrate how clouds work. You only need water, ice, a jar, and a few minutes of time.

Take Part: Join NASA’s Globe Observer Clouds

Measure Rain and Snow with CoCoRaHS

fun cool science experiments at home

Fall is approaching fast, which means many of us will soon be at home watching rain and snow out the window. Instead of succumbing to the gloom, why not make that weather into a fun science experiment for your kids?

The CoCoRaHS weather monitoring program, or Community Collaborative Rain, Hail, and Snow Network, is a network of volunteers who measure and report on precipitation. CoCoRaHS emphasizes training and education, and they even have an interactive website rich in educational resources and even National Weather Service lesson plans you can use at home.

RELATED: Getting Creative with Remote Science Learning

As a volunteer, you’ll use the same low-cost weather gauges that meteorologists and cities use. Then, when it rains, snows or hails, you’ll submit your precipitation data to the website where you can compare it to others in real-time. That information also helps out the National Weather Service, as well as researchers, farmers, emergency managers — and curious people everywhere.

Take Part: Join the CoCoRaHS Weather Monitoring Network

Plant a Pollinator Garden

fun cool science experiments at home

Pollinators play a vital role in Earth’s ecosystems, and yet they’re threatened by pesticides, disease, habitat loss and even climate change. That has many people searching for  ways to help save bees and other pollinators .

There are many options to chip in, but one of the most impactful things you and your kids can do at home is  plant a pollinator garden .

Not only will this serve to help struggling pollinators, it can also serve as a long-term science laboratory at home. SciStarter, the citizen-science group behind this blog post, has compiled an entire group of at-home science projects that can be done from your pollinator garden. You can watch moths, butterflies, bees, hummingbirds and more, then help scientists track their migration across the country.

Take Part: Plant a Pollinator Garden

Build a Bee Condo

fun cool science experiments at home

If you already have a bumper garden at home, or it’s getting too cold to think about planting just yet, you can still stay indoors and help pollinators. The group behind National Pollinator Week has put together instructions for how you can build a home for native bees, called a bee condo. Unlike domesticated honey bees that live in apiaries, most native, wild bees you find in your backyard actually burrow their homes into the soil or a tree.

By building a bee condo, you can encourage bees to live nearby and also get a fun, DIY science experiment to do at home. Once it’s up, you can watch what kinds of critters take up residence there and report back on the results for science.

Take Part: Build a Bee Condo

Scan the Night Sky

fun cool science experiments at home

Around the world, light pollution from buildings and street lamps is blocking our view of the night sky. Most people who live in cities have never seen a truly dark sky, or the Milky Way. That’s not just bad for humans, it’s also bad for the plants, animals and insects who are disrupted by light pollution.

If you have a budding astronomy-lover in the house, you can participate in a science project called  Globe at Night  that aims to create a world-wide measure of light pollution in our night sky.

For this science experiment, you can start making observations using only a smartphone. You’ll mark the sky’s darkness by how many stars you can see. And you can get a sky quality meter through the project to help record even better data.

Take Part: Measure Light Pollution in Your Community

Measure Water Quality

fun cool science experiments at home

More than 1.5 million volunteers from across the planet are already taking part in a science experiment to track — and protect — Earth’s waterways. The citizen science effort is called the  EarthEcho Water Challenge , and it has users buy a water test kit for about $25, then start collecting basic water data.

Volunteers record things like water clarity, temperature, pH and dissolved oxygen. That data gets plugged into a large database, where it’s used for real science research and to help protect waterways.

Take Part: Join the Earth Echo Water Challenge

Study the Vitamin C in Your Juice

fun cool science experiments at home

Back in the golden age of sailing, sailors worried that they’d get scurvy. A lack of vitamin C during long voyages can cause a host of health problems. Scurvy leaves you weak, causes skin problems and gum disease, and makes it harder to heal. Scurvy can even kill you. This isn’t just an old-timey concern, either. Future space explorers will have to worry about vitamin C as they head off to explore the solar system. And that’s the angle utilized by a fun citizen science project called  Space Scurvy .

The project asks students to use household items to test the vitamin C content of juices from their schools and homes. The necessary tools for this science experiment should be easy to come by, and the site has fun and simple directions for you to follow.

Take Part: Measure Vitamin C for the Space Scurvy Project

Note: Some of these projects are SciStarter Affiliates. You can use your SciStarter account email to join and earn credit for your participation in your SciStarter dashboard.

Citizen Science Lessons During the Pandemic

About the Author

Eric Betz is a science and tech writer for Discover Magazine, Astronomy Magazine, and others. He is a lover of #darkskies and pale blue dots.

20 Mind-Blowing Physics Experiments You Can Do at Home in 5 Minutes!

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Bored at Home? Unleash Your Inner Scientist with These 20 Physics Experiments!

Who says physics is just for stuffy classrooms and complicated labs? You can explore the wonders of science right from your kitchen or living room with these 20 mind-blowing physics experiments. The best part? They can all be done in under 5 minutes using everyday household items!

Get ready to be amazed, because you're about to:

  • Create a cloud in your mouth (it's way cooler than it sounds!)
  • Move water without touching it (telekinesis, anyone?)
  • Turn a tea bag into a miniature rocket (blast off!)
  • Make an egg stand upright (defy gravity!)
  • And much, much more!

These experiments are perfect for:

  • Bored adults looking for a fun and engaging activity
  • Parents searching for educational entertainment for their kids
  • Students wanting to bring physics to life outside the classroom
  • Anyone with a curious mind and a thirst for knowledge!

Here's a sneak peek at the scientific magic you'll be exploring:

  • Cloud in a Bottle: Discover how pressure changes can create clouds with just your mouth and a little bit of air.
  • Static Electricity Water Bender: Harness the power of static electricity to bend a stream of water with a simple balloon.
  • Leidenfrost Effect: Witness water defying gravity and dancing on a hot surface like tiny, shimmering beads.
  • Can Crushing Pressure: Explore the relationship between pressure and temperature by making a can implode with just a little bit of water and ice.
  • Candle Science: Uncover the secrets of combustion and air pressure with a series of fascinating candle experiments.
  • Magnetic Magic: Experiment with magnetism and heat to see how temperature affects a magnet's strength.
  • Aerodynamics and Flight: Learn about aerodynamics by levitating a ping pong ball and launching a tea bag rocket.
  • Center of Gravity Challenges: Test your balancing skills with mind-bending experiments using forks, toothpicks, and a hard-boiled egg.
  • Surface Tension Tricks: Explore the properties of water and surface tension by pouring water down a string and making a card defy gravity.
  • Optical Illusions and Non-Newtonian Fluids: Dive into the world of light and viscosity with mesmerizing experiments using polarized lenses and cornstarch.

Ready to unleash your inner scientist? Gather your household items, put on your thinking cap, and get ready for an unforgettable journey into the fascinating world of physics!

Pro Tip: For even more science fun, check out these awesome resources: * Seven Surface Tension Experiments: [Link to YouTube video] * 5 Weird Ways to Put Out a Candle: [Link to YouTube video] * Glowing Band-Aids: [Link to YouTube video] * Stacked Ball Drop: [Link to YouTube video]

So what are you waiting for? Let the experiments begin!

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10 of the Best Colourful Science Experiments

September 5, 2024 By Emma Vanstone Leave a Comment

Colourful science experiments are often much more engaging for younger children than less colourful activities. Adding colour to a lava lamp, volcano or density demonstration makes the activity feel extra special.

I’ve pulled together a list of my 10 favourite colourful science experiments for kids of all ages.

10 Colourful Science Experiments for kids

Create a skittles rainbow.

The infamous Skittles experiment will never let you down. It’s inexpensive, simple and looks fantastic.

Children can turn it into an investigation by using different temperature water and arranging the Skittles in different ways.

Skittles Experiment - skittles in water

Rainbow in a hosepipe

Create a rainbow on a sunny day day using just a hosepipe. All you need to do is stand with your back to the sun, spray the hosepipe and a rainbow will appear in the droplets!

using a hosepipe on a sunny day to make a rainbow

DIY Colour Mixing Wheel

A colour mixing wheel is a fun way to learn about primary and secondary colours. Children can create their own or use my handy template.

Another fun way to learn about colour mixing is to make colour mixing squishy bags .

colour-mixing-wheel

Colourful Jar Activity

Creating firework type swirls of food colouring in a glass of water is a brilliant, very visual science activity for kids of all ages.

oil, water and food colouring in a glass. The food colouring is creating swirls of colour through the water.

Colourful Potions

Baking soda and vinegar potions can be made colourful by adding food colouring or using red cabbage indicator . Red cabbage indicator is especially fun to use as it changes colour depending on whether you add an acid ( vinegar ) or alkali ( baking soda ).

colour changing potions made using red cabbage indicator

The addition of a little dish soap makes an extra foamy potion.

fun cool science experiments at home

Coloured Density Jar

A multicoloured density jar can be made from water, salt and food colouring!

The blue-coloured water contains salt, which makes it denser than the orange water, which does not contain salt. The denser liquid stays on the bottom and does not mix with the less dense liquid on the top. If the glasses were placed with the salt water on top, it would sink to the bottom and the colours would mix.

Two glasses on top of each other filled with water, food colouring and different amount of salt. One colour floats on top of the other.

Colourful Flowers

White flowers can be made colourful by placing them in a vase of coloured water. The colourful water rises up the stem into the white petals, filling them with colour.

This is a great science activity for demonstrating transpiration .

colour changing flowers

Colourful Baking Soda Volcano

A baking soda volcano is an ever popular science activity. We made this one extra special by using two colours for the lava!

multicoloured volcano for a science project

If you have snow this winter, snow volcanoes are easy to set up and almost mess-free. We made four different colour volcanoes a couple of years ago.

Colourful Snow Volcanoes

Paper Chromatography with Felt Tip Pens

Colourful paper chromatography is a simple science activity that can be done using paper towel if you don’t have filter paper.

The different inks in the felt-tip pens move through the kitchen towel at different speeds, separating the colours.

Black pens often contain the most different colour inks and are a great example of how this technique can be used as a method of separation.

paper chromatography results. An example of a chromatogram.

Colourful Salt Crystals

Creating colourful salt crystals is a fun science activity for a hot day and a visual way to learn about evaporation.

coloured salt from an evaporation investigation

More colourful science experiments

Set up a walking water experiment . This is a fantastic way to learn about capillary action and looks brilliant when it’s complete.

Learn about surface tension with a magic milk display .

Create a colourful slushy drink using the cooling power of ice and salt.

Do you have a favourite colourful science activity?

Colourful Science Experiments for kids

Last Updated on September 5, 2024 by Emma Vanstone

Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

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    Explore science experiments you can do at home with simple ingredients and materials. Find experiments by category, popularity, difficulty, or browse the newest and most trending experiments on this web page.

  6. 32 Cool Science Experiments for Kids (that are Fun AND Easy!)

    Learn how to do fun and easy science experiments at home with your kids, from tie-dye milk to Saturn's rings. Explore topics like chemistry, physics, and biology with everyday items and questions to spark curiosity.

  7. 67 Easy Science Experiments for Kids To Do at Home

    Find fun and educational science experiments for kids of all ages using household items. Learn about crystallization, carbon dioxide, yeast, mold, taste buds, and more with these cool and simple activities.

  8. Science Experiments for Kids to Try at Home

    Learn about chemistry, physics, biology, and more with these fun and easy science projects for kids. From potato batteries to crystal geodes, these experiments use household ingredients and show cool science concepts.

  9. 50 Amazingly Simple Science Experiments for Kids at Home

    Explore science with basic household supplies and have fun with these easy and engaging experiments for kids of all ages. Learn about water, baking soda and vinegar, plants, animals, and more with hands-on activities and printables.

  10. Science Experiments For Kids

    Discover the fun and excitement of science with easy and cool experiments you can do at home. Explore categories like kitchen chemistry, electricity and magnetism, balloon science, color science, and more.

  11. 20 Awesome Science Experiments You Can Do Right Now At Home

    And you can bring that awesomeness into your very own home with these 20 safe DIY experiments you can do right now with ordinary household items. 1. Make Objects Seemingly Disappear. Refraction is ...

  12. 45 Best Science Experiments for Kids to Do at Home or In School

    Wash and dry your hands. Leave the eggs in the glasses for 12 hours. After 12 hours, remove the eggs from the glasses of soda one at a time. Rinse them in cool water and pat them dry with the ...

  13. 50 Fun Kids Science Experiments

    Explore science with easy and hands-on activities for kids. Find 50 fun experiments by topic, season, age group, and more on this website.

  14. 25 COOLEST Science Experiments You Can Do at Home for Kids

    25 EASY Science Experiments You Can Do at Home!Subscribe to our channel: http://bit.ly/1L5DNroFollow Our Twitter: http://twitter.com/spacebound100 Life Hacks...

  15. Easy Science Experiments You Can Do at Home or at School

    Learn how to make a science by doing fun and easy experiments at home or at school. Find instructions for hovercrafts, ice cream, volcanoes, rockets, slime, and more.

  16. 40 Science Experiments

    10 Awesome Science Experiments By inventor 101I put together some crazy science experiments you can do at home or for school science project, hope you enjoy ...

  17. 20 Best Science Experiments To Do At Home With the Kids

    Find easy and fun science experiments to do with your kids at home using common household ingredients. Learn about chemistry, biology, physics and more with these hands-on activities that are educational and entertaining.

  18. 100+ Easy Science Experiments for Kids To Do at Home (Using Materials

    Learn about chemistry, weather, physics and more with these fun and simple science experiments using household ingredients. From oozing pumpkins and volcanoes to rain clouds and water cycles, these activities are perfect for kids of all ages and interest levels.

  19. 12 fun science experiments for kids you can do at home

    Learn about non-Newtonian fluids, dinosaurs, electromagnetism, surface tension, DNA, and more with these easy and delicious projects. From making quicksand to extracting DNA from split peas, these ...

  20. 15 Cool Science Projects Your Kids Can Do at Home

    15 coolest science projects for kids to do at home. To help you and your kids get started with some of the best science experiments, we've rounded up the 15 coolest science experiments. They will help you teach kids about different chemical reactions, air pressure, and many other scientific phenomenon. Let's dive in. #1 Create a homemade lava lamp

  21. 25 EASY Science Experiments You Can Do at Home!

    Watch this video to learn how to do 25 fun and simple science experiments at home with common household items. You can explore topics like chemistry, physics, biology, and more with these easy and ...

  22. 8 Fun Science Experiments You Can Easily Do at Home

    Learn how to make sourdough, create a cloud in a jar, measure rain and snow, plant a pollinator garden, and more with these citizen science projects. Each experiment ties into real-world research and helps you discover the wonders of science at home.

  23. 20 Mind-Blowing Physics Experiments You Can Do at Home in 5 Minutes!

    Pro Tip: For even more science fun, check out these awesome resources: * Seven Surface Tension Experiments: [Link to YouTube video] * 5 Weird Ways to Put Out a Candle: [Link to YouTube video] * Glowing Band-Aids: [Link to YouTube video] * Stacked Ball Drop: [Link to YouTube video] So what are you waiting for? Let the experiments begin! You may ...

  24. 10 of the Best Colourful Science Experiments

    Colourful science experiments are often much more engaging for younger children than less colourful activities. Adding colour to a lava lamp, volcano or density demonstration makes the activity feel extra special. I've pulled together a list of my 10 favourite colourful science experiments for kids of all ages.. 10 Colourful Science Experiments for kids

  25. Engage Your Kids with Fun Science Activities

    Many science experiments can also be done in small groups, providing the opportunity to teach children the value of teamwork and collaboration. They'll learn to share ideas, listen to others, and work together to achieve a common goal—skills that are vital for their social development. Science Experiments to do at home