science experiment grade 9

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Are you looking for science activities to do with your 2nd graders? No sweat. We have you covered. Check out our list of 23 science projects and experiments that you can try with your 9th graders this month.

• Is a Dense Fruit a Healthy Fruit? | Education.com – Grades 9-12, In this experiment, students will find out if there is a correlation between density and nutritional value, by measuring the density of vegetables and fruits.
• Effect of Glucose and Sucrose as Dietary Additives | Education.com – Grades 9-12, Students examine if and how glucose affects the lifespan of humans.
• Effect of Acid Rain on Seedling Germination | Education.com – Grades 9-12, Does acid rain have a positive or negative impact on seedling germination? In this project, students use vinegar-based solutions to mimic acid rain conditions to find.
• Effectiveness of Garlic in Fighting Bacteria | All-Science-Fair-Projects.com – Grades 9-12, Use milk in petri dishes to find out if garlic is a natural antibiotic.
• How Do Roots Grow When the Direction of Gravity Changes? | ScienceBuddies.org -Grades 6-10, Plants respond to gravity by stems that grow upward and roots that grow downward. Experiment with germinating seeds and rotate them to make up down and down up. How do you think the growing seedlings will respond?
• Build a Raft Powered by Surface Tension | Sciencebuddies.org – Grades 6-10, Learn about the properties of surface water tension, and use it to propel a raft.
• Paw Preference in Pets | Sciencebuddies.org – Grades 7-10, Are animals left-handed or right-handed like humans?
• Bat Detector: Listen to the Secret Sounds of Bats | Sciencebuddies.org – Grades 7-10, Study the behavior of bats to find out how do they use echolocation to catch their prey
• Saving Migratory Animals | ScienceBuddies.org – Grades 7-10, They’re here today but could be gone tomorrow. Examine the migratory path of a bird species and the similarities and differences between their winter and summer habitats. Recommend which locations should be preserved to protect these species.
• Electric wind: hi-speed threads of charged air | Scienceclub.org – Grades 9-12, Use dry ice and an electrostatic generator to observe air streams and hi-speed air-threads.
• Evaluating Benfords Law | Education.com – Grades 9-12, In this project, students investigate the applicability of  Benford’s Law to many sets of everyday data, such as lists of country populations, utility bills or the distance of various stars from earth.
• Patterns in J.S. Bach | Education.com – Grades 9-12, Determine the mathematical patterns in JS Bach’s two-movement preludes and fugues.
• Raw vs. Cooked Foods | Education.com – Grades 9-12, Do raw foods contain more calories than cooked foods? Use a bomb calorimeter to measure and calculate the amount of energy (calories) within various foods, ignite food samples, calculate the change in temperature.
• Chemistry of Ice-Cream Making | Sciencebuddies.org – Grades 9-12, Test how the addition of salt and other substances to water affects the freezing point of the water-based solution. Is rock salt and ice the best combination for freezing ice cream?
• Water to Fuel to Water | ScienceBuddies.org Grades 9-12, Examine the possibilities for water as part of the fuel cycle for the future. How efficient is a cobalt-based catalyst at helping to form molecular oxygen?
• Levitating with Eddy Currents! | Sciencebuddies.org – Grades 9-12, Build your own maglev (magnetic levitation) system and demonstrate how eddy currents work.
• Does Your Cell Phone Leak? | Sciencebuddies.org – Grades 9-12, Measure cell phone radiation from several distances when making a call and when texting.
• Lighthouse Redesign | Education.com – Grades 9-12, Old lighthouses have historical significance.  Give them a new life with a modern interior redesign.
• Lights and Sounds of Logic | Illinois Institute of Technology – Grades 9-12, Digital electronics such as smartphones and computers work by embedded logic. Use circuits that light up and make a sound to show how this basic logic works.
• Oregametry | Education.com – Grades 9-12, Use the mathematics of paper folding to learn the practical applications of particular origami folding techniques. Create your own origami or make modifications to existing designs.  Origami Sightings has some mind-blowing applications of origami concepts.
• Extracting Heat Energy from a Compost Pile | Sciencebuddies.org – Grades 9-12, Use your bananas peels, newspapers, leaves, and coffee grounds to create compost. Find out if enough energy is generated from the compost to heat water.
• Do Hurricanes Cool the Ocean? | Sciencebuddies.org – Grades 9-12, Collect data on hurricane strength and sea surface temperature to determine if cooling occurs and if it can be measured with the passing of a hurricane.
• How Earth’s Wobble Affects the Rotation of Earth | Education.com – Grades 9-12, The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates. You’ll record observations over three months.

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25 Incredible 9th Grade Science Project Ideas To Try

Categories Education/School

Forget quizzing your class on all 118 elements of the periodic table. Gather them together for some fun science projects instead!

If you’re teaching grade 9 students, there’s no better way to increase their interest in the wonders of science than by letting them play mad scientist.

Looking to add some spark and energy to your science lessons?

Let your students get creative and experimental with these 25 incredible 9th grade science project ideas to try that are sure to wow and amaze your class!

These incredible grade 9 science projects cover chemistry, physics, biology, and more. For health and safety reasons, just make sure to provide adult supervision where necessary.

1. Pressure Bottle Rocket

Firing this list off is an explosive science project idea that’s as educational as it is heaps of fun. This science project will have your students building their very own pressure rocket from a plastic bottle and a few other basic materials. Just watch out, as you might get wet!

2. Homemade Radio

Turn your students into inventors with this science project that will teach them how to make a homemade radio out of a few household items. They’ll even learn how to make their own headphones using a small magnet, a nail, a tin, and some fine wire.

3. Popping Boba Balls

Science projects can also be tasty! This science project will get your students to turn their favorite drinks into semi-solid boba balls that they can eat like pieces of candy. It’s a fun and effective way to teach your class about spherification and molecular gastronomy.

4. Flying Teabag

Ever seen a flying teabag? Your students probably haven’t either. This flying teabag science project is impressive yet simple, only requiring matches, markers, a non-flammable plate, and as many as many teabags as your students want to see flying!

5. Floating Rice

Teach your students about friction with this fun science project that’s as close as it gets to performing magic. All you need are uncooked grains of rice, a plastic bottle, and a chopstick, pencil, pen, or stick. It’s a simple project, but it’s sure to make their jaws drop!

6. Flaming Torch

Your students will jump at the idea of creating their own fire vortex from rising heat and wind. The main items you’ll need are a turntable, wire mesh bucket, and borosilicate glass beakers. The flames can rise above the bucket, so make sure to do this experiment outside.

7. Glowing Water

Show your students something interesting about tonic water with this glowing water science project idea. You can use tonic water or regular water soaked with the ink from a highlighter pen. Then it’s simply a matter of shining a black light on the water!

8. Rainbow Fire

Here’s a simple science project for teaching your students about chemical reactions . All it involves is a bunsen burner and several chemicals, including boronic acid, strontium chloride, sodium chloride, and potassium chloride, which will turn the flames into different colors.

9. PET Bottle Bridge

This science project idea is perfect as a group activity. It involves building a bridge out of PET plastic bottles using screws and tape. What will amaze your students is how sturdy the finished structure will be (thanks to one amazing science principle), as they’ll be able to walk on it!

10. Infinity Mirror

Optical illusions are always fascinating. And that’s exactly what your students will create with this fun infinity mirror science project. These infinity mirrors will dazzle and impress and also make for a great display item that your students can take home after class.

11. Lemon Volcano

Your students have probably made an erupting playdough volcano using bicarbonate of soda, vinegar, and food coloring – a classic school science project. But what about a lemon volcano? Just a word of caution: this science project can get messy!

12. Stained Glass Candy

Get your students to create their own edible peppermint candy that they take home and share. This science project idea is like a cooking class and a science experiment in one! It will also teach your students about the importance of measuring accurately in chemistry.

13. Vertical Hydroponic Farm

Teach your class about hydroponics and hydroculture with this fun science project that will get them to grow their own vertical farm. This is a large project that also involves building a support frame with microcontrollers that monitor the plants!

14. Rubber Band Racer

Kick-start a drag race competition with this science project idea that will teach your students how to make their own rubber band racers. This science project requires a hot glue gun and an electric drill, so just make sure the students have enough adult supervision.

15. Is Denser Fruit Healthier?

Organize a fun science experiment for your class with this project idea that will get them to test the density of different fruits and vegetables and whether density signifies their nutritional value. Teach them about science and healthy eating in one!

16. Marble Roller Coaster

Transform the classroom into a miniature theme park with this thrilling science project that involves building roller coasters out of foam pipe insulation and masking tape. The students will then measure how much height is needed to make the marbles loop the loops.

17. Teleidoscope

Get the students to create their own DIY kaleidoscopes with this teleidoscope science project. You’ll need to gather a few materials to make the teleidoscopes, but the finished product is something they’ll be peering through for the rest of the day!

18. Electric Play Dough

Teach your students about conductivity with this electric play dough science project idea. It involves piecing together the electrical components as well as creating the playdough itself. Add some creativity by letting your students create their own playdough shapes to electrify.

19. Water Quality

Here’s an environmental science project idea that will also teach your class an important survival skill! Your students will learn about water safety and contamination, as well as how to test the quality of water from any water source and whether it’s safe to drink.

20. Charging Gadgets With Solar Power

Wireless charging? Your students will jump at this science project idea that will teach them how to charge their gadgets with solar power. Several tools are required (including a soldering iron and wire cutters), so just make sure the students are well supervised.

21. Magical Plastic Bag Experiment

Here’s another incredible science project that will have the students believing they’re performing magic. It’s a simple experiment involving pencils and plastic bags filled with water. Will the water spill when punctured? Get your students to find out!

22. Easy Heart Pump Model

Help your class learn more about how the human heart works with this STEM science project idea that will instruct them to build a model heart pump. All you need is a small jar, bendy straws, a balloon, tape or glue, water, and red food coloring.

23. Tiny Dancers

This simple and fun science project idea will teach your class how to make a homopolar motor out of an AA battery and magnet. Your students will also get to create their own “tiny dancers”, which will start to spin once placed on top of the batteries.

24. Heat Sensitive Color Changing Slime

Let your students get messy with this science project idea that will teach them how to create heat sensitive color changing slime. All it requires is white school glue, water, thermochromic pigment, liquid starch, and different food colorings for them to get creative with.

25. Magic Spinning Pen

Have your class discover the power of magnets themselves with this school project idea that involves creating a small structure with a magnetic field. Gluing a ring magnet to a pen and placing it in the middle of the other magnets will cause the pen to spin on its nib!

That wraps up our list of 25 incredible 9th grade science project ideas to try with your class, which will help them discover more about the world of science through their own creativity and experimentation.

The above science project ideas are perfect for students aged 14 to 15 and are guaranteed to fascinate them no matter whether science is their favorite subject or not. Try these as soon as possible to add some excitement to your science lessons!

Further reading: How to homeschool a 9th grader.

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18 Mind-Blowing 9th Grade Science Project Ideas

• High School

As a 9th grader, you’re just beginning to explore the fascinating world of science. This is the perfect time to start experimenting with creative, engaging, and educational science projects. Here are 18 mind-blowing ideas for your next 9th grade science project:

1. Build a Crystal Radio: Understand how a simple radio receiver works by constructing your own crystal radio set.

2. Investigate Bacterial Growth: Compare the bacterial growth on different household surfaces (e.g., kitchen countertops, door handles) and analyze which areas require more careful cleaning and sanitation.

3. Earthquake Simulation: Build a shake table to simulate earthquakes and test how various building designs perform under seismic stresses.

4. Food Chemistry: Experiment with chemical reactions in food by exploring how various acids and bases affect the taste and texture of certain ingredients.

5. Solar Oven Design: Learn about solar energy by constructing a solar oven using everyday materials and see how efficiently it can cook food.

6. DNA Extraction from Fruit: Practice extracting DNA from strawberries or other fruits using safe household items like dish soap, salt, and rubbing alcohol.

7. Tornado in a Bottle: Create a model tornado to understand how these powerful weather phenomena form and develop.

8. Homemade Glue: Research natural adhesives found in nature, then develop your DIY glue formula using household materials.

9. Invisible Ink: Study the chemistry behind invisible ink and test different methods for writing secret messages that can only be revealed with the right reactions or substances.

10. Self-Inflating Balloons: Discover the principle behind self-inflating balloons by experimenting with baking soda and vinegar reactions in closed containers like water bottles or balloons.

11. Taste vs. Smell: Observe the relationship between taste perception and olfactory senses with various flavors of jelly beans or other strong-tasting candies while blindfolded or with a friend.

12. Water Filtration: Design and test your water filtration system using household items, like coffee filters or sand, and assess its effectiveness in removing impurities from contaminated water.

13. Homemade Thermometer: Construct a simple thermometer using a clear straw, rubbing alcohol, and a water bottle to observe temperature changes in different conditions.

14. Rocket Launch: Investigate the principles of physics and aerodynamics by constructing DIY rockets using plastic bottles and fuel options like baking soda and vinegar or Alka-Seltzer tablets.

15. Grow Your Own Bacteria: Investigate the different types of bacteria that grow on various surfaces by swabbing them and cultivating colonies on agar plates in petri dishes.

16. Air Pressure Explorations: Discover how air pressure affects various objects like balloons, marshmallows, or vacuum-packed bags through controlled experiments.

17. Battery-Powered Items: Learn about voltaic cells by building simple batteries using lemons or potatoes to power LED lights or small electronic devices like calculators.

18. Illusions of Motion: Study how our brains perceive motion with visual illusion experiments using stroboscopes or simple animations created on a computer or smartphone app.

With these 18 mind-blowing science project ideas for 9th graders, you’re sure to find one that piques your interest and teaches you something new along the way! Happy experimenting!

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9th Grade Science Fair Projects

Creative Project Ideas for High School Freshmen Who Love Science

• Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
• B.A., Physics and Mathematics, Hastings College

Ninth grade is the first year of high school, so freshmen might find themselves competing against older students in a science fair. Even so, they stand every bit as good a chance of excelling and winning. The key to success is choosing an interesting project that doesn't necessarily take a lot of time to complete.

Gearing a Project to the 9th Grade Level

Ninth graders have a lot going on, so it's best to choose a project idea that can be developed and completed over the space of a few weeks or less. Since high school students are expected to be familiar with word processing programs and printers, the quality of the presentation is very important. 

Are you making a poster? Be sure to make it as professional as possible. Also, remember that accurately citing sources is critical to any successful project. Always cite any references used in developing your experiment.

9th Grade Science Fair Project Ideas

• Teeth whiteners : Find the shade of white that matches your teeth. Brush your teeth using a teeth-whitening toothpaste or gum. What color are your teeth now? To obtain additional data, have other family members test different products and monitor their results.
• Seed germination: Can you affect or improve the germination rate of seeds by pre-rinsing them in a chemical before planting them? Examples of chemicals to try include hydrogen peroxide solution , diluted hydrochloric acid solution, diluted isopropyl alcohol solution , and fruit juice. Some of these agents are thought to be able to loosen the seed coat surrounding the plant embryo.
• Hair conditioner: Using a microscope, determine whether hair conditioner affects the condition of hair (either comparing brands or comparing with conditioner to without-conditioner). The goal is to get empirical data, such as a diameter measurement of each hair strand and the distance a strand can stretch before it breaks.
• Bread shelf-life: What's the best way to store bread to keep it fresh for the longest time?
• Optimizing appliance efficiency: What things can you do to improve the efficiency or effectiveness of your clothes dryer or water heater—or any device? For example, are there any actions you can take or changes you can make that will decrease the length of time it takes for your dryer to dry a load of towels?
• Music and memory: Does listening to music while you study affect your ability to memorize facts?
• Smoke and plant transpiration: Does the presence of smoke in the air affect plant transpiration?
• The impact of eye color on peripheral vision : Does eye color affect peripheral vision? Supposedly, people with darker eyes tend to have wider pupils for a given amount of light than people with light-colored irises. If you have a more open pupil, does it give you measurably better peripheral vision? Another idea to test would be to see if you have the same peripheral vision in bright light as compared with dim light.
• Acid snow? Most of us have heard about acid rain, but do you know the pH range of snow? If you live in an area with snow, test its pH. How does the pH of snow compare with the pH of rain from the same region?
• Soil erosion: What methods of preventing soil erosion work best? For example, what is effective at preventing erosion in your yard?
• Localized noise reduction: What can you do to reduce noise pollution in a room? What factors contribute to noise pollution inside a residence?
• Seed viability: Is there a test you can perform to predict whether or not a seed will germinate? What factors can you measure that might be used to construct a test?
• The effects of magnets on insects and brine shrimp: Does an external magnetic field have any noticeable effect on animals such as brine shrimp, cockroaches, or fruit flies? You could use a strip magnet and containers of sample organisms and make observations to address this question.
• How is phosphorescence affected by light? Is the brightness of glow-in-the-dark (phosphorescent) materials affected by the light source (spectrum) used to make them glow or only by the intensity (brightness) of the light? Does the light source affect the length of time a phosphorescent material will glow?
• How do preservatives impact Vitamin C? Can you affect vitamin C (or another measurable vitamin) levels in juice (or another food) by adding a preservative to the juice?
• Insulation variables : What is the best thickness of insulation for preventing heat loss?
• How does energy input impact light bulb lifespan? Is light bulb lifespan affected by whether the bulb is run at full power? In other words, do dim bulbs last longer/shorter than bulbs run at their power rating?
• Speaker acoustics: What type of box material gives you the best sound for your speaker?
• How does temperature affect battery life? When comparing different brands of batteries: Is the brand that lasts the longest at a high temperature the same as that brand lasts the longest at a cold temperature?
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Science Fair Projects for 9th Graders

These science fair projects for 9th grade are perfect for older kids to explore advanced science concepts and tinker with some more exciting materials.

(Ages 9-16 )

Water squirters work by pressurizing reservoirs of water with air. As you pump the squirter, it gradually adds air to the reservoir, increasing the pressure. When you pull the trigger, the pressure is allowed to release and a stream of water shoots out!

In this DIY project, we'll learn how to use the exact sample principles found in water squirters to launch a water rocket sky-high! Follow along with these simple steps and you'll be blasting off in no time.

Want to make a bottle rocket without the hassle of gathering materials? Blast off with a Bottle Rocket crate from the KiwiCo Store ! It includes a step-by-step video tutorial link, illustrated blueprint instructions, all the materials, and a special-edition Tinker Zine magazine for more project fun!

(Ages 7-16 )

Make a tea bag fly with heat! The flying tea bag experiment is a similar concept to a hot air balloon, but you can do it right at home. This project is simple to create, but impressive to kids and adults alike!

Want to learn more about chemistry without the hassle of gathering materials? Explore the science of crystallization with a Crystal Chemistry Garden from the KiwiCo Store !

Create a whirling fire torch of your own. The flames spin upwards into a vortex from the rising heat and wind. Follow along to safely create a whirling fire torch yourself!

Unlike the magnets that are used on refrigerators, electromagnets are magnets that can be turned on and off depending on the flow of electricity. The electricity that flows through the wire allows the molecules in the nail to attract certain things. Give this experiment a try, and see how many paper clips you can pick up with your electromagnet!

(Ages 5-16 )

Ready to get racing? Explore potential and kinetic energy with this rubber band-powered racer that kids (and grownups) can't get enough of!

Grow your young engineer's love for physics with a Marble Roller Coaster from the KiwiCo Store ! Become a thrill engineer and build twisty, turny tabletop roller coasters.

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Get inspired.

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25 Interesting 9th-Grade Science Project Ideas

By Beth Roberts | Last Updated May 4, 2022

The only thing stopping you from thinking of a worthy project for 9th-grade science class is your lack of inspiration. Trust us; we’ve got plenty of ideas to get you started. We have learned that at this level through trial and error. Ready to have some fun and get your hands dirty? Here are 25 of the most interesting 9th-grade science project ideas.

1. Floating Rice 

The floating Rice project is a classic and interesting one at that. It’s simple, it’s fun, it’s cheap, and most importantly – it works. This is suitable for 9th-grade rooms if your students are still interested in scientific experiments after being exposed to formulae and equations.

2. Hydroponic Garden 

Hydroponic Garden is another exciting option to explore . You can get an aquarium and use it to grow plants, or use an enormous container, such as the ones you can buy from a hardware store, mix the soil yourself or simply buy soil from somewhere else. You will have to have a water source for the container that is kept moist throughout the day.

3. Crystal Powered Radio 

Crystal Powered Radio is a classic and exciting project for 9th-grade science students. It is fun to do, cheap, and it can be in a space as small as a classroom. You will need some crystals or stones and an AM transmitter that you can build on your own.

4. Plastic Bottle Bridge 

If you are on the quest for interesting 9th-grade science project ideas , you need to let your students explore this fun and interesting little project. It is cheap, easy to do, it can be indoors and outdoors, and most importantly – your students will learn a lot from this.

5. Apple Wrecking Ball 

Apple Wrecking Ball is another cheap and fun project. It is simple, requires very few resources, and can be indoors and outdoors. Your students will need nothing other than a few apples, some ping pong balls, and a string. It may not appear to be a particularly engaging project at first glance, but it investigates a variety of fascinating topics, including pressure, to mention just one.

6. The Chemistry Of Colorful Fire 

The Chemistry of Colorful Fire is a project for 9th-grade science students interested in chemistry and physics. It is simple, requires very few resources, and can be indoors and outdoors. 

7. Optical Illusions In Color And Black & White 

Optical Illusions in Color and Black & White is an exciting project to explore for 9th-grade students. The project is pretty simple, and indoors or outdoors. In addition to its educational value, your students will have a blast while trying it out on their friends, even if they are unsure what they are doing.

8. Rubber Band Car 

Rubber Band Car is another exciting project for 9th-grade science students. You need nothing more than some rubber bands, some toothpicks, and a few other things to make it work. The idea is simple, and the assembly process is straightforward. Your students will enjoy doing something like this without knowing that they are learning something simultaneously.

9. Earthquake Science 

This is an excellent project for 9th-grade science students , mainly if they are interested in geology. It is cheap and fun, and it is safe to conduct outdoors. However, keep in mind that your students will have to know how to read the signs and take some time to play around with their creation before trying it out on an unsuspecting person.

10. Forensic Fingerprints 

If you have a 9th-grade science class interested in criminal investigation and forensics, then the Forensic Fingerprints project is what you need. It is suitable for the more advanced students in this group, and it can be both indoors and outdoors.

11. Effects Of Antibiotics On Bacteria 

Effects of Antibiotics on Bacteria is a fun and interesting 9th-grade science project idea. Students will be able to observe the effects of antibiotics on bacteria by growing the bacteria in an environment with and without the drug.

12. Glowing Water 

Glowing water is an easy and fun experiment that you can do at home. You can use this as a science fair project for 9th-grade science class or just have your kids learn about glowing water as an interesting 9th-grade science project idea.

13. Candy Lab 

Candy Labeling is a fun and interesting 9th-grade science project idea. You can have your students label the types of candy in a jar that resembles a rainbow. This will also help them to become more confident with marking things.

14. Rain Or Snow: Which Is More Acidic? 

Rain or Snow: Which is more Acidic? This is an interesting 9th-grade science project idea. You can have your students compare the amount of acid produced by rain vs. snow on apples. This will let them know the differences and similarities between rain and snow.

15. Is A Dense Fruit A Healthy Fruit? 

Is a Dense Fruit a Healthy Fruit? is an interesting 9th-grade science project idea to let students know about fruits’ density and nutritional value. Students will be able to check the thickness of different fruits and correlate it with their nutritional value and their density. This will help them to determine the health benefits of these fruits.

16. Effect Of Acid Rain On Seedling Germination 

Effect of Acid Rain on Seedling Germination is a fun and interesting 9th-grade science project idea. You can have your students test different species of seedlings in an environment with and without acid rain. This will let them know the effects of acid rain on seedlings used for farming.

17. How Do Roots Grow When The Direction Of Gravity Changes? 

How Do Roots Grow When the Direction of Gravity Changes? This is an interesting 9th-grade science project idea. Students will be able to observe how roots grow when gravity changes. They will keep a seedling in an environment with and without altered gravity. This will show them how hearts react in different kinds of environments. 

18. Electromagnetism 

Electromagnetism is an interesting 9th-grade science project idea. It can be a fun and exciting experiment for your students to observe the effects of electromagnetism on a coiled plastic wire. This will let them know the results of electromagnetism on us daily.

19. Rubber Band Racer 

Rubber Band Racer is an interesting 9th-grade science project idea that lets the students know about the relationship between the mass, speed, and tension of a rubber band. This will help them to understand how their cars work. They will create a roller coaster with rubber bands instead of rails.

20. Flaming Torch 

Flaming Torch is an exciting 9th-grade science project idea that lets the students know about the relationship between pressure, temperature, and volume of gas. They will be able to create a flaming torch with a bicycle pump attached to a balloon. They can perform some other experiments with this flaming Torch as well.

21. Flying Tea Bag 

Flying Tea Bag is a fun experiment enjoyed by kids and adults alike. This simple experiment will enthrall your audience and make them wonder how a teabag can fly. All you need are some tea bags and some rubber bands. You want to stretch the rubber band over the teabag, preferably around the middle portion of the pack. Then, you want to let it go by pulling off the rubber band in a quick motion.

22. Pressure Bottle Rocket  

This is a simple rocket experiment . You need to take a two-liter plastic soda bottle, something to hold the end, and fill it with water or air. Make sure you don’t accidentally throw it into the fire and have a huge mess. Take a strip of aluminum foil and wrap it around the bottle cap to ensure it doesn’t fly off when you light the bottle.

23. Origami Sightings 

Origami is an art that anyone can do . And with this experiment, you can show your audience that paper can fly. All you need are some sheets of paper and scissors to do this. You can also use a larger sheet of paper if you’d like. Fold the sheet along the natural crease to form wings. Then take the report and fasten it onto a wall or ceiling using glue, tape, or nails and strings.

24. Chemistry Of Ice-Cream Making 

Chemistry of Ice-Cream Making is a fun experiment that you can do using ice cream or yogurt. It’s an easy experiment, and your class can enjoy watching it get warmer as the chemical reaction occurs. You need some sugar, food coloring, and water with a spoon. Put the sugar in the scoop and add food coloring gradually. Keep stirring until the color throughout the mixture. Then add water bit by bit until you have a spoonful of liquid.

25. Levitating With Eddy Currents

Eddy currents are conductive materials used in many applications such as motors, speakers, satellites, or microwave ovens. They are also used to detect changes in the density of liquids. In this experiment, you will use eddy currents to levitate objects using water and paint. You will need a bowl of water and some paint for the project. 

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9th Grade Science Project Ideas: Posters, Experiments, DIYs, And Discussions

March 8, 2024 //  by  Sharayah Lynn Grattan

The 9th-grade science fair is quickly approaching, yet your ideas either lack excitement or were used in last year’s fair…well, look no further! We have collected 56 unique and creative science fair projects that are sure to impress both your students and fairgoers. From optical illusions to black lights and chemical reactions, whatever sparks your students’ imagination, we’ve got you covered! Grab your science goggles and let’s start experimenting! 

1. Accurate Weather Forecasting

This experiment works best with access to a weather station. Most cities do have one, so see if weather records are available to use with your class. If not, keep a log from various weather channels: 1-day t, 3-day, 5-day, and 7-day forecasts. Your students will compare these predictions to real-time weather to gauge the forecasting accuracy.

 Learn More: Weather Forecast

2. Floating Rice

Friction happens all around us, and without it, our world would slip into chaos! To complete this simple experiment, your kiddos will only require some rice, a bottle, and a long utensil such as a chopstick or pencil. Have them fill the bottle with rice, push the pencil or stick inside, and lift the bottle to see what happens!

Learn More: Floating Rice

3. Gender Influence on Math Anxiety

This experiment challenges your kiddos to take on some pretty advanced concepts like adding control groups, managing variables, and data interpretation. They can use heart monitors connected to other kids in a math class and a different subject, and then compare the results. Can they identify anxiety patterns between genders and subjects?

Learn More: Gender And Math Anxiety

4. Hydroponic Garden

Are vertical gardens the way of the future? This engineering project requires your kiddies to have some prior knowledge of plant caretaking, and the willingness to construct a complex system with pipes and connectors. Let them build their hydroponic garden and find out if plants can grow without soil!

Learn More: Hydroponic Garden

5. Crystal Powered Radio

With just a diode, a piece of wood, and an earphone, your students can make their own homemade radio! Following the specific instructions, they’ll be able to connect materials in order to pick up signals from the surrounding area!  Let them explore different options and make the best radio they can!

Learn More: Homemade Radio

6. Plastic Bottle Bridge

This experiment tests your kiddos’ engineering skills by building a bridge out of plastic bottles and metal screws! Their creation will need to be strong enough for your class to walk and sit on! Your engineers will love cutting and connecting plastic bottles and inflating them with dry ice to create a strong structure. 

Learn More: Bottle Bridge

7. Apple Wrecking Ball

This awesome STEM challenge uses momentum, force, and inertia to maneuver an apple to hit target objects. Have your learners create a structure using string and construction paper rolled into cylinders. Next, they can get creative by choosing markers, highlighters, empty bottles, or other items to face down the apple wrecking ball!

Learn More: Apple Bowling

8. Symbiotic Plants and Bacteria

Do bacteria and plants work together? How do nitrogen-fixing bacteria support the growth process? Have your class answer these questions with this simple chemistry experiment using pots, soil, seeds, a sterile inoculating loop, and a Rhizobium leguminosarum culture (bacteria). They’ll observe what happens when only half their pots receive the bacteria!

Learn More: Bacteria And Plants

9. The Chemistry of Colorful Fire

Explore the chemical process behind the change in color in flames with this cool experiment!  Your students will test common chemicals by running a metal rod under cold water and dipping it in the chemical being tested, before exposing it to a flame. They will then record the results to show which chemicals change the flame’s color! Who knew chemistry could be so colorful!?

Learn More: Rainbow Fire

10. Second Language Learning Factors

This project focuses on the social sciences by exploring whether gender, native language, or age affects how we learn a second language. Have your kids dive in by creating a hypothesis and then let them test this prediction out with willing study participants! They’ll love the chance to get their friends and family involved with this fun project idea!

Learn More: Slideshare

11. Optical Illusions in Color and Black & White

What role does color play in how our eyes perceive the world around us? For this project, your kiddies will time how long it takes for participants to solve both color and black-and-white illusions to find out which type is more challenging to see! The results might surprise them!

Learn More: Optical Illusions And Color

12. Rubber Band Car

Your learners will love this project where they can make a car from just a few simple household items! In this fun engineering design project, they’ll use paper cups, rubber bands, a paper clip, a small washer, and one chopstick. Once the parts are assembled,  show them how to twist the chopstick around the rubber bands to change potential energy to kinetic energy causing the little car to take off!

Learn More: Kinetic Car

13. Earthquake Science

This cool science experiment explores how static friction works to create an earthquake-like disruption using natural materials. Grab standard bricks and see how much force it takes to rub them together. Your students will gain extra practice with math when varying the controls by adding weight to fluctuate the friction! 

Learn More: Earthquake Math

14. Forensic Fingerprints

This project is based on the techniques used by forensic scientists to identify fingerprints found at crime scenes!  Let your kiddies become mystery solvers too using just some muriatic acid and oily fingers. The muriatic acid reacts with the amino acids in the skin to make fingerprints glow green – so cool!

Learn More: Fingerprint Science

15. Effects of Antibiotics on Bacteria

How do the most common antibiotics react with gram-positive and gram-negative bacteria? Have your learners collect bacteria from their skin or mouth and swab them onto a petri dish. Show them how to establish a control dish and then add different antibiotics to the other dishes. They’ll be amazed as they observe how the antibiotics react with the bacteria! 

Learn More: Antibiotic And Bacteria

16. Glowing Water

This experiment will receive glowing reviews! Your students will need a highlighter, a black light, tonic water, and a dark room to create their glowing water. Instruct them to soak the felt tip of the highlighter in tonic water; after a while, they can place the water next to a black light in the dark room, and see it glow!

Learn More: Glowing Tonic

17. Candy Lab

This two-day experiment offers your pupils the opportunity to apply their knowledge of moles and molecules to make peppermint-flavored candy! All they’ll need is an aluminum tin, a Bunsen burner, and the focus to follow careful directions so that candy will be made! Learning to make candy? They won’t believe their luck!

Learn More: Candy Labs

18. Rain or Snow: Which is more Acidic?

This experiment compares acid rain with acid snow to discover which has a lower pH and is therefore more acidic. Your little scientists will collect samples from water sources like rain, snow, and sleet, and then test them using pH paper. Have them record each result so that they can compare them at the end! 

Learn More: Acidic Water Types

19. Soda Rocket

Chemical reactions are a great topic for a science project. In this demonstration, your kiddies will create their own rockets using just soda and Mentos candy! They’ll show what happens when these two substances interact and form a reaction – much to the delight of their audience! 

Learn More: Hessun Academy  

20. Chladni Plate

Your kiddos won’t believe you when you say they can see sound! For this experiment, they can use recycled materials to build a cylinder and then stretch a balloon over the top. Next, have them add salt to the surface and then blow or speak into the side tube to create sound. Seeing the moving effects of sound will truly ‘wow’ your audience!

Learn More: Science Mom

21. Burning Ice

Can ice really burn? This experiment is a great way for your learners to find out! Adding alcohol over ice creates the illusion of it being on firefire,  but the true source of the flame is really the alcohol. They’ll love coming to this conclusion, documenting the process, and demonstrating this at, their science fair 

Learn More: Steamsational

22. Oxidation Experiment

This experiment shows your class which items are prone to oxidation. Have them collect items made from different types of metal and submerge them in water and/or salt water to observe how fast they rust. Applying the scientific method and keeping a close record of the process will support budding scientists!

Learn More: Teach Beside Me

23. Create a Biodome

Any of your students who are interested in environmental science and the engineering design process will love this biodome project! They can use materials including sand, seeds, and insects, and measure the effects of different amounts of water on their environment. What a fantastic way to observe the interconnectedness of ecosystems!

Learn More: Teach Engineering

24. Light Maze

Scientists eager to learn how light works will enjoy creating these light-bending mazes. Have your kiddies build a maze and then add mirrors to reinforce and explore the concept that light travels in a straight line. This experiment also encourages them to think like engineers as they construct and build their mazes.

Learn More: Science-Sparks

25. Build Your Own Fan 

Give your kiddos a better understanding of how currents and circuits work by having them build this small electric fan. This kit comes with all of the items needed to build this fan and includes step-by-step directions for them to follow; perfect if you need an idea that’s ready to go with minimal prep! 

Learn More: Amazon

26. DIY Hot Air Balloon

The sky’s the limit with this project focusing on forces and motion. Challenge your students to find the best design and materials for a  hot air balloon. Testing it will be the real task! Will it fly or fall flat? Remind them to document their trials so they have the data to present at the fair! 

Learn More: Teaching Is Messy

27. Which Fertilizer is Best?

Let your students discover the secret ingredient to great plant growth. This experiment will expand on their existing knowledge of what plants need to grow by having them determine the best fertilizer for producing and enhancing growth. Your future agronomists will test the effects of different fertilizers and record their observations to present at the fair!

Learn More: Education

28. Head to the Races

If any of your students have access to a 3D printer, this is definitely the project for them! They’ll be taking on the challenge of creating their own race cars to compete against their peers! They’ll need to consider how the cargo affects racing performance and think of ways to overcome this as they race to the finish line!

Learn More: Instructables

29. Life Cycles of Stars

Space exploration is always a topic of interest in any 9th-grade classroom. In this NASA lesson, your kids will study the life cycle of stars and diagram the different phases and processes that contribute to a star’s formation. It’s a super opportunity for your budding astronomers to explain the mysteries of the universe! To infinity and beyond! 

Learn More: National Aeronautics And Space Administration

30. Water Wheels 

Water wheels are an engineering marvel unfamiliar to most people, and this experiment lets you put these ingenious creations front and center for your kiddies! Challenge them to use their math skills to construct a water wheel and observe how it conducts energy and power. This experiment combines history, engineering, math, and science!

Learn More: Resource Center

31. Morse Code Machine

Although Morse code is no longer frequently used, at one time it was an important system of communication! Introduce Morse code by having your students build their own Morse code machines using a buzzer, some batteries, and push buttons. A demonstration of the sounds and the Morse code process will be a hit at the science fair! 

Learn More: Surviving A Teacher’s Salary

32. Catapulting Pumpkins

What could be more fun than pumpkin chunkin’? Your kiddos will love building their own catapults and recording the distance that their flying pumpkins travel. This science fair project is not only a blast, but it is also a STEM learning experience all about tension, torsion, and gravity!  

Learn More: TPT

33. Tiny Dancers

This fun project actually generates electricity! Your learners will use nothing more than some copper wire, a battery, some magnets, and a few tools and decorations to create tiny dancers on top of a battery. These dancers will get a groove on once the electric current runs through them! 

Learn More: Babble Dabble Do 

34. Birds and the Colors They Eat 

Are birds attracted to certain colors? Have your kiddos find out by filling bird feeders with identical food, but disguise them in different colors to determine if our flying friends are drawn to specific colors. Challenge your class to come up with a way to document the data carefully to present their findings to an audience that is sure to be captivated by this interesting project!  

Learn More: Science Bob

35. Solar Oven

Bring the kitchen to the (outside) classroom! Your kiddies will love building their own solar oven and conducting experiments to determine how different materials affect the cooking time of food. This is a great opportunity to create graphs and charts to show how materials influence the effectiveness of their ovens and make themselves some tasty treats in the process! 

36. Measure The Speed Of Light With Chocolate

I think we can all agree that the best science projects involve chocolate! For this physics experiment have your kiddos heat chocolate in a microwave and then use this measuring process to work out the wavelengths of light. After the experiment is complete, don’t forget to eat your chocolate! You wouldn’t want it to go to waste!

Learn More: Fizzics Education

37. Overnight Crystals

Growing crystals is a science fair must! This experiment couldn’t be simpler as all your kids will need are some common household items, including Epsom salt and food dye, to create overnight salt crystals. Have them explore the world of saturated mixtures and evaporation as they create crystals of various sizes and shapes.

Learn More: Babble Dabble Do

38. Separate Your Water

This chemistry experiment helps your kiddos to understand that water is a combination of two different gases! Challenge them to separate the two gases by first of all researching the best way to do this! It may take several attempts before they find the approach that actually works! 

Learn More: Navigating By Joy

39. Make Your Own Spectrometer

This amazing science project allows your learners to build and use their own spectrometers. Using all recycled materials and following a simple set of instructions, they’ll be able to observe different light patterns within their spectrometer. What a perfect activity to investigate light! 

40. Banana DNA

Do your kiddos know that they share 50% of their DNA with a banana? Once mashed, they’ll be able to put their banana under a microscope to closely examine the strands of this DNA! They are sure to feel like real scientists as they log their observations.

Learn More: Rainy Day Mum

41. Model and Function of the Brain

Do you think it’s impossible to get hands-on when learning about the brain? Think again!  Let your students use a head of cauliflower to create a model of the brain, and then diagram each of its parts using color-coded labels. Have them use this to teach fair participants about the function of each part of our brains! 

Learn More: Pinterest

42. Environmental Oil Spill

Creating a replica of an oil spill is a great science project to teach the scientific method and spread awareness about environmental issues! Get your learners to set up this amazing visual to demonstrate the effects of an oil spill on the environment and the process involved in cleaning it up. 

43. Regrow Food from Scraps

This creative project is a great way to learn more about recycling and gardening. Have your learners use kitchen food scraps to grow a variety of fruit and vegetable plants. Encourage them to share the fruits of their labor at the science fair!! 

Learn More: Hessun Academy

44. Growing Bacteria

You want to grow bacteria!?! Yes, actually! Start your kiddos off by having them begin to swab and label samples from places in their home or classroom. Next, have them use the Bacteria Growing Kit to analyze bacterial growth on each sample and record their results so that they can determine where bacteria are thriving! 

Learn More: Our Journey Westward

45. Indoor Plant Growth

Growing plants has been done many times before, but this project has an exciting twist! Your students must use a cardboard box, light bulb, and aluminum foil to make an insulated indoor grow box! This is an opportunity to create charts that document how the box increases the plants’ growth rate. 

Learn More: Uplifting Mayhem 

46. Five Second Rule

Have you ever used the Five Second Rule? Have your little scientists test just how safe this well-known rule is by setting up six experimental groups – a control group and five groups representing different time spans for dropped food. They’ll compare the microbes grown on the samples to find out if this is really a rule to live by! 

Learn More: ScienceNewsExplore

47. Egg Drop Contest

The time-tested egg drop challenge is a great way to inspire the future engineer in your students. They’ll design multiple contraptions that hold an egg and protect it during a fall! Which of their contraptions will result in the least egg damage? 

Learn More: Teachers Pay Teachers  

48. Geometry Roller Coaster

This roller coaster experiment is the perfect science project to incorporate plenty of geometry while also having a lot of fun! Using paper, tape, and some accurate measurements, they’ll construct their very own roller coasters and then conduct test runs with marbles!

Learn More: Teaching High School Math

 49. Lung Model and Tobacco Prevention 

By building a model lung, your kiddies will be able to share the effects of tobacco, educating others about this important topic. Using a recycled bottle, balloons, straws, and tape, they’ll make a mock lung to show how it is affected by the use of tobacco. 

Learn More: Surviving A Teacher’s Salary

50. Potato Power

Does the type of potato matter when hooked up to a battery to conduct power? This science project will help solve that puzzle and put a new spin on this classic science project! Your kiddos will focus on circuits and electricity, and test different potatoes to determine which type conducts electricity best.

Learn More: Mom Dot

51. Egg Floating in Salt Water

Here’s another great way to demonstrate your learners’ understanding of scientific testing methods! Challenge them to discover how much salt it takes to make an egg float! They can try out different amounts of salt, documenting the entire scientific process and reporting on whether or not the hypothesis checked out! 

52. Soil Degradation Experiment 

This super interesting project will be an eye-opener for your class! Guide them to set up different mock environments and show the effects on water when the soil is disrupted and soil degradation occurs. They can use recycled jugs and water bottles to set up this experiment. 

Learn More: Geography Pods

53. Why Do Apples Turn Brown?

Teach your kiddies more about oxidation and preservation with this fun project! After they’ve researched why apples turn brown, have them test different substances to add, and see if any will preserve the apples longer. They could add vitamin C, honey, water, vinegar, or any other substances they’d like to test! 

Learn More: Left Brain Craft Brain

54. Fastest Way to Cook a Potato

Give your students a master class in the process of the scientific method! This project will see them testing out seven different methods of cooking potatoes in either an oven or microwave. After they determine which method is quickest, they can display their process and findings at the science fair! 

Learn More: Left Brain Craft Brain 

55. Water Pollution Experiment 

Your students will benefit from student choice when setting up and carrying out this experiment. Have them start by collecting water and treating it according to the plan they’ve come up with, and then use microscopes to observe changes in the water as bacteria begin to grow. 

Learn More: Layers of Learning

 56. Composting

Discover the wonders of decomposition with this composting cups project. Over time, your kiddies will observe the process of natural recycling right before their eyes! By adding a small amount of water each day, the bacteria in the composting cups will work its magic!

Learn More: The Happy Housewife

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72 Easy Science Experiments Using Materials You Already Have On Hand

Because science doesn’t have to be complicated.

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.

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

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.

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

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

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

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

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

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.

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

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

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!

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

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

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.

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.

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.

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

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

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

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

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

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

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!

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.

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.

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

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

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

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

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!

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

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

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

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

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

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

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

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

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

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

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.

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.

59. Craft smartphone speakers

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

Learn more: Smartphone Speakers

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

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

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

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

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.

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

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

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

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

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

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Science Fair Guide

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9th Grade Science Fair Projects

Each experimental science project guides in this list contain all the steps you need to start and complete your science project. Information include Introduction, Question/Purpose, Variables, Sample Hypothesis, Sample Experiment designs, guides in creating data table, Graph, drawing Conclusion, writing an Abstract, writing Report. Engineering and display projects may have a different structure.

General Science Projects EX016 A Projector (Make a slide projector)

Physics Science Projects IP029 Buzzers and bells and alarms. IP110 How is paint affected by temperature changes? IP111 How does temperature affect the elasticity of rubber? IP112 How does temperature affect the strength or adherence of glue? SP011 The mathematics of snowflakes SP022 The effect of solar activity on radio propagation SP033 Observations of magnetic permeability of different materials SP061 Index of refraction of liquids versus temperature SP062 Index of refraction of liquids versus amount of additive SP071 Crystal growth rates versus solution strengths, temperature, etc SP091 Experimenting with various separation techniques (e.g. electrophoresis) SP100 Make a universal Reflector SP421 Impact force of falling object  

Chemistry Science Projects SC021 Determination of the Thickness of Zinc on a piece of Galvanized Metal SC022 Distillation of Water from an Aqueous Solution Using a Disposable Apparatus SC023 Candy Chromatography SC024 A comparison of the Solubility of Carbon Dioxide in Water at Various Temperatures SC026 A Penny’s Worth of Hydrogen SC028 Determination of the Relative Viscosities of Liquids SC029 Discover a good antifreeze (Freezing Point Depression) SC030 Reactions Between Ions In Solution Using Consumer Materials SC031 Physical Properties and Intermolecular Bonding in Solids SC035 The Effect of Temperature on the Rate of Dissolving SC037 Balloon Race (The Effect of Temperature on the Rate of Reaction) SC039 The Effect of Concentration on the Rate of a Reaction SC040 Kinetic Experiments; Effect of concentration on the rate of reactions SC042 Catalysis Using Enzymes In Pineapple SC045 Activities of Metals SC047 Electrolysis of Water without a Hoffman Apparatus SC048 Making and Testing a Simple Galvanic Cell SC049 Tracking Electrons SC050 The Chemistry of Copper Plating SC051 Production of Synthetic Fiber SC054 Ion Exchange SC055 Make Iron Sulfate, Hydroxide, Oxide SC094 A study of saponification reactions SC095 A study of esterification SC101 Electrolysis of Potassium Iodide SC102 Magnesium Research SC110 Which fruits contain the most vitamin C? SC120 Compare fruits for their sugar contents  

Biology Science Projects SB011 The effect of sound on plants SB021 Plants in different environments (light intensity, color) SB031 The effect of nicotine, air, yeast on mold growth SB041 Factors affecting the strength of hair SB042 Factors affecting the growth of bacteria SB043 Factors affecting the growth of molds or yeast SB051 Experiment with Hydroponics SB071 The effectiveness of Antiseptics and soaps on household bacteria SB091 Comparing types of artificial light on plant growth SB101 Conditions necessary for the life of a brine shrimp SB121 Producing mutations in bacteria SB122 Producing mutations in yeast SB131 Best conditions for mushroom production SB141 The effects of ultrasonic on bacteria count SB142 The effects of antibiotics on bacteria count SB161 Reaction of planaria to pH, light and temperature conditions SB162 Reaction of paramecia to pH, light and temperature conditions SB171 Plant tropisms and growth hormones SB181 Transpiration rates for different plants and conditions SB191 Sugar level in plant sap at different times and dates SB211 A study of territoriality in mice SB221 A study of the cleaning habits of mice SB251 Learning and perception in animals and humans SB261 Studies of memory span and memory retention SB271 Age versus learning ability SB281 A study of the relation between physical exercise and learning ability SB291 Is audio or visual information better remembered SB292 Brain Hemispheres. SB301 The effect of bleaching and dyeing on hair SB311 A study of the percentage of DNA (by weight) in different species SB321 Factors affecting the enzyme’s reaction rates SB341 Factors affecting seed germination (e.g. soil temperature, pH) SB361 Factors affecting flowering SB391 Factors affecting Nodule Formation in Legumes SB401 Can household compounds (e.g. tea) be used to promote good health in plants SB411 Effects of cigarette smoke on the growth of plants SB421 The effects of water impurities on plant growth SB431 The effects of phosphates on aquatic plants SB451 The effect of excess salinity on plants SB501 The effects of electromagnetic fields on plants SB531 Does magnetizing seeds before planting affect growth SB541 The effects of XRay and other radiation on plants SB551 The effect of music of varying types and duration on plants SB561 Organic fertilizer versus chemical Fertilizer SB582 Toxicity of nicotine SB601 A study of stimuli that attract mosquitoes SB611 The factors affecting the rate at which a cricket chirps SB631 A study of diffusion through cell membranes SB641 Growing plants and animals by cloning SB651 Regeneration in sponges, Paramecia, Planaria, etc. SB701 Salivary Amylase and Starch Digestion SB702 Study and Experiment with Milk SB704 Comparison of the Effects of Inorganic Catalysts and Enzymes on Peroxide Decomposition SB707 Heat Content of Snack Foods SB708 Solubility and the Percent of Oil in Peanuts SB801 Homeopathy principles, facts and fictions  

Environment Science Projects SV103 Study of adaptations of city flora to smog SV105 The effects of crowding (with the same or other species) on a certain plant SV106 Annual variations in the ecology of a body of water SV107 Study of a shoreline SV110 Study of the relation between vegetation and insects SV116 Study of air purification methods SV117 Efficient methods of breaking down crude oil in seawater SV118 Experimenting with microbial degradation of petroleum SV119 Experimenting with biodegradability SV121 Find an ink that would decompose for recycling paper SV122 Using solar energy to purify polluted or salt water SV123 Yeast: A Filtration Agent for Heavy Metals?  

Other Science Projects SE001 Design considerations for Solar Heated homes SE002 Design considerations for Solar-Cell powered homes SE003 study of propeller designs for wind generators SE004 Production of electrical energy from mechanical sources SE005 Study of efficient home insulation SE007 The effect of landscaping and architecture on energy consumption SE008 Efficiency studies on transformers SE009 The effect of temperature on resistance SE010 Study of formation of images on a T.V tube SE012 L.E.D illumination versus incandescent illumination in practice SE013 Voice communication with infrared light and fibre optics SE014 Find the maximum speed in fibre optic links SE015 Study of various phosphors in fluorescent lighting SE016 Structure versus strength in dams

HTML clipboard Note: Most projects are for more than one grade and selection depends on your previous knowledge about the subject. Do not select projects that you are not familiar with.

Top 10 Science Project Ideas For Class 9

Table of Contents

Top 10 science project ideas for Class 9: Are you looking for exciting science project ideas for your Class 9 students? Class 9 science projects are an integral part of the CBSE syllabus , designed to enhance students’ understanding of fundamental scientific concepts outlined in the NCERT solutions . These projects serve as practical applications of theoretical knowledge acquired in the classroom, encouraging students to explore various scientific principles through hands-on experimentation. From investigating chemical reactions to studying the laws of motion, class 9 science projects foster critical thinking and analytical skills while instilling a deeper appreciation for the scientific method. These projects cover various topics in science, including physics, chemistry, biology, and environmental science. Also access our NCERT Solutions Class 9 that are created by our subject experts. Here are the top 10 science project ideas that are both educational and fun.

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Class 9 HOTS Course

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1. Homemade Battery

Materials Required:

• Copper coins (2)
• Zinc nails (2)
• Cardboard pieces (2)
• Clean the copper coins and zinc nails to remove any dirt or debris.
• Cut the cardboard pieces to fit between the coins and nails.
• Place one copper coin on a flat surface.
• Place one cardboard piece on top of the coin.
• Place one zinc nail on top of the cardboard.
• Repeat the layering with the second set of components (copper coin, cardboard, zinc nail).
• Pour vinegar over each set of components to soak the cardboard.
• Stack the two sets of components together, ensuring that the copper coins and zinc nails are not touching each other.
• Connect the multimeter to the copper coin at one end and the zinc nail at the other end.
• Set the multimeter to measure voltage and observe the reading.

2. Solar Water Purifier

• Plastic bottles (2)
• Activated charcoal
• Contaminated water
• Cut the bottom off one plastic bottle to create a funnel.
• Keep the other bottle intact as the collection container.
• Place a layer of activated charcoal at the bottom of the funnel bottle.
• Add a layer of sand on top of the charcoal.
• Finish with a layer of gravel on top of the sand.
• Place the funnel bottle upside down inside the collection container.
• Ensure that the neck of the funnel bottle is above the rim of the collection container.
• Pour contaminated water into the funnel bottle.
• Allow the water to filter through the layers of activated charcoal, sand, and gravel.
• Collect the purified water from the collection container.
• Place the purifier in direct sunlight.
• The UV rays from the sun will help disinfect the water.
• Observe the clarity and cleanliness of the purified water compared to the contaminated water.

3. Seed Germination Experiment

• Various types of seeds (e.g., bean, pea, corn)
• Paper towels
• Plastic bags
• Select different types of seeds for the experiment.
• Place a few seeds of each type on a damp paper towel.
• Dampen the paper towels with water, ensuring they are not too wet.
• Fold the paper towel over the seeds to cover them completely.
• Place the wrapped seeds in a plastic bag.
• Seal the plastic bag to create a humid environment for the seeds.
• Place the bags in a warm, well-lit area, such as a windowsill.
• Check the seeds daily for germination.
• Record the number of days it takes for each type of seed to germinate.
• Note any differences in germination time between the types of seeds.
• Record the growth of the seedlings over time.
• Analyze the results of the experiment and draw conclusions about the factors that affect seed germination.

4. Electric Motor

• Copper wire
• Battery (AA or AAA)
• Magnets (neodymium magnets work well)
• Small piece of wood
• Insulating tape
• Wind the copper wire tightly around the piece of wood to create a coil. Leave a few inches of wire at each end.
• Attach one end of the coil to the positive terminal of the battery using insulating tape.
• Attach the other end of the coil to the negative terminal of the battery using insulating tape.
• Place the magnets on a flat surface with the poles facing up.
• Place the piece of wood with the coil on top of the magnets.
• Spin the coil gently to start the motor.
• Observe the rotation of the coil.
• You can change the direction of the current in the coil by reversing the battery to change the direction of rotation.

5. Acid-Base Indicator

• Red cabbage
• Various household acids (e.g., vinegar) and bases (e.g., baking soda solution)
• Boil red cabbage leaves in water to extract the pigment.
• Let the solution cool and strain out the cabbage leaves to obtain the indicator solution.
• Pour a small amount of the indicator solution into separate containers.
• Add a small amount of each household acid and base to different containers.
• Note any color changes in the indicator solution when it comes into contact with acids and bases.
• Acids typically turn the solution pink or red, while bases turn it green or blue.
• Compare the color changes in the indicator solution when exposed to different acids and bases.
• Note the differences in color changes between acids and bases.
• Based on the color changes observed, classify the substances tested as acids or bases.
• Red cabbage indicator can be used as a natural pH indicator for household acids and bases.

6. Rainwater Harvesting Model

• Plastic containers (2)
• Water collection barrel
• Place one plastic container under a downspout to collect rainwater.
• Connect a pipe to the downspout to direct water into the container.
• Place a layer of gravel at the bottom of the second container.
• Add a layer of sand on top of the gravel.
• Place the second container above the first one, with the pipe running from the first container to the second.
• Connect the two containers with a pipe, ensuring a slight slope for water to flow.
• Place a filter at the entrance of the pipe to prevent debris from entering the second container.
• When it rains, water will flow from the downspout into the first container.
• Excess water will flow through the pipe into the second container, where it will be filtered and stored.
• Use the harvested rainwater for gardening, washing vehicles, or other non-potable purposes.
• Regularly clean the filters and containers to prevent clogs and contamination.
• Optionally, install a water pump to use the harvested rainwater for irrigation or other purposes that require water pressure.

7. Simple Circuit

• Gather the battery, light bulb, wires, and switch.
• Connect one end of a wire to the positive terminal of the battery.
• Connect the other end of the wire to one terminal of the switch.
• Connect another wire from the other terminal of the switch to one terminal of the light bulb.
• Connect a final wire from the other terminal of the light bulb back to the negative terminal of the battery.
• Close the switch to complete the circuit.
• The light bulb should light up when the circuit is closed.
• Open and close the switch to observe the behavior of the light bulb.
• The light bulb should turn on when the switch is closed and turn off when the switch is opened.
• Experiment with different components to see how they affect the circuit.
• Handle the components carefully to avoid electrical shocks.
• Do not leave the circuit connected for an extended period to prevent overheating or damage to the components.

8. Photosynthesis Model

• Green leaves
• Clear plastic bag
• Choose a healthy green leaf from a plant.
• Place the leaf in a small amount of water to keep it fresh.
• Place the leaf in a clear plastic bag.
• Seal the bag, leaving some air inside.
• Place the bag in direct sunlight.
• Watch the bag over several hours.
• Look for small bubbles forming inside the bag.
• The bubbles indicate that the leaf is releasing oxygen, a byproduct of photosynthesis.
• Photosynthesis is the process by which plants convert sunlight into energy, using carbon dioxide and water.
• This model demonstrates how plants produce oxygen, which is essential for life on Earth.
• It shows the importance of sunlight and plants in the ecosystem.

9. Magnetic Levitation

• Neodymium magnets (2)
• Styrofoam disc or platform
• Electromagnetic coil (optional)
• Power source for the coil (if using)
• Place a styrofoam disc or platform on a flat surface.
• Position one neodymium magnet on the platform.
• Hold the other magnet above the platform, with the poles facing each other.
• Slowly lower the top magnet towards the bottom magnet.
• Find the point where the top magnet hovers in mid-air due to magnetic repulsion.
• Optional: If using an electromagnetic coil, place it under the platform.
• Connect the coil to a power source.
• Turn on the power source for the coil (if using).
• The electromagnetic field generated by the coil will interact with the magnets, causing levitation.
• Move the top magnet around to see how the levitation point changes.
• Observe how the distance between the magnets affects the levitation.
• Magnetic levitation occurs when magnetic repulsion balances the force of gravity, allowing an object to float in mid-air.

Sample Video for Class 9 Science

10. microbial fuel cell.

• Two graphite electrodes
• Plastic container
• Salt bridge (optional)
• Microorganisms (e.g., soil, wastewater)
• Attach a wire to each graphite electrode.
• Fill the plastic container with the microorganism-rich medium (e.g., soil, wastewater).
• Insert the graphite electrodes into the medium, ensuring they do not touch each other.
• Connect one electrode to the positive terminal and the other to the negative terminal of the multimeter.
• Turn on the multimeter to measure the voltage produced by the microbial fuel cell (MFC).
• The voltage indicates the electrical energy generated by the microorganisms.
• If using a salt bridge, place it between the electrodes to enhance ion flow.
• Observe the multimeter readings over time.
• Record any changes in voltage as the microorganisms generate electricity.
• A microbial fuel cell uses microorganisms to convert organic matter into electricity through a process known as microbial metabolism.
• This project demonstrates how microorganisms can be used as a renewable energy source.

These science project ideas are not only educational but also engaging for Class 9 students. They can be done using simple materials and encourage students to explore various scientific concepts through hands-on experimentation.

These science project ideas offer students opportunities to engage with scientific concepts in fun and interactive ways. Whether exploring renewable energy, conducting biology experiments, or delving into space exploration, students can develop critical thinking skills and a deeper understanding of the world around them through hands-on projects. Encouraging curiosity and exploration is key to nurturing the next generation of scientists and innovators.

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• CBSE Science Project
• Science Experiments For Class 9

Science Experiments for Class 9

Most people consider science a fascinating subject, but for some, it is not among their favourites. This is mainly because of the fact that science has been taught to them in a monotonous manner. The interesting nature of science goes undiscovered most of the time.

This is one of the major reasons why the schooling curriculum focuses on fostering a liking for science among students by implementing projects of different types.  Here are some science experiments for Class IX students that include topics from chemistry, biology and physics which would be helpful for students to grasp concepts in a simple and lucid manner.

Here are some examples of  Science Experiments

Wave-particle duality of light

Acid Test – How to spot minerals separately

Elastic Collision of Equal Masses Using Pool

How to make a fireproof balloon

For more information on CBSE exams, syllabus and notifications, stay tuned with BYJU’S. At BYJU’S, CBSE students are also provided with the latest sample papers, question papers, worksheets and other exam materials to help them learn in a better way.

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37 Cool Science Experiments for Kids to Do at Home

General Education

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.

#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

#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

#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

#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.)

#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)

#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

#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)

#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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45 Easy Science Experiments for Kids

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

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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

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!

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

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

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"

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

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

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

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

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 »

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

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

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

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

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

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

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

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

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

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

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 »

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.

10 Easy Science Fair Experiments for Kids, Parents and Teachers

Welcome to our collection of 10 easy science fair experiments for kids ! These hands-on activities are perfect for sparking curiosity and making learning fun. Whether you’re a parent, teacher, or young scientist, these experiments—from erupting volcanoes to DIY lava lamps—are designed to be simple, engaging, and educational. With a little help from an adult, you can dive into the world of science and discover how exciting it can be.

1. Erupting Volcano Experiment

Introduction: Welcome to our exciting science fair project—creating your very own erupting volcano! This experiment is perfect for first and second graders to learn about chemical reactions in a fun and spectacular way. You’ll need an adult to help with some steps, so make sure to have a grown-up nearby!

Objective: To observe and understand the chemical reaction between baking soda and vinegar that causes a volcanic eruption.

• 1 small plastic bottle (500 ml)
• Baking soda (60 grams)
• Vinegar (200 ml)
• Dish soap (5 ml)
• Red food coloring (a few drops)
• Modeling clay or playdough (enough to cover the bottle and form a mountain)
• A tray or shallow container (to catch the overflow)
• Measuring spoons and cups
• Safety goggles (optional, for extra fun and safety)

Hypothesis: Predict what will happen when you mix baking soda, vinegar, and a few other ingredients in your model volcano. Do you think it will erupt like a real volcano?

• Place the plastic bottle on the tray. This is your volcano’s “magma chamber.”
• Use the modeling clay or playdough to shape a mountain around the bottle. Leave the top open so you can add your ingredients.
• Get creative with the shape and details of your volcano!
• In a separate cup, mix together 200 ml of vinegar, 5 ml of dish soap, and a few drops of red food coloring to create your “lava.” This will help make the eruption more colorful and bubbly.
• Pour the vinegar mixture into the bottle in your volcano.
• Add 60 grams of baking soda to the bottle and quickly step back to watch your volcano erupt!

Observation: Watch closely what happens when the baking soda meets the vinegar mixture. You should see a foamy and fizzy eruption that looks like lava flowing down the sides of your volcano.

Results: Record what you observed. Was the eruption slow and steady, or quick and explosive? How high did the “lava” flow?

Conclusion: Explain why the reaction happened using simple science. When baking soda (a base) and vinegar (an acid) mix, they create carbon dioxide gas, which builds up pressure until it forces the liquid out in an eruption. This is similar to what happens in a real volcano, where gases build up pressure underground.

Further Experimentation:

Try the experiment again using different amounts of vinegar or baking soda. Does changing the amounts change how your volcano erupts?

This experiment not only teaches you about chemical reactions but also lets you create a mini spectacle at home or at your science fair. Have fun being a young scientist and remember to clean up after your experiment!

2. Floating Egg Experiment

Introduction: Dive into the fascinating world of density with the Floating Egg Experiment! This simple yet intriguing project is perfect for first and second graders to explore how different solutions affect whether an object sinks or floats. This experiment will need a bit of adult help, so make sure you have a grown-up to assist you!

Objective: To understand how the addition of salt to water changes its density and affects the buoyancy of an egg.

• Tap water (about 500 ml)
• Table salt (about 60 grams)
• 1 large clear glass or jar
• Measuring spoons
• Stirring spoon

Hypothesis: Before you begin, think about whether you believe the egg will float in plain water and what might happen when you add salt to the water. Write down your guess.

• Fill the glass or jar with 500 ml of tap water.
• Gently place the raw egg into the glass of plain water and observe what happens. Does it sink or float?
• Remove the egg carefully.
• Add 60 grams of salt to the water. Stir well until the salt is completely dissolved.
• Once the salt is dissolved, gently place the egg back into the saltwater solution. Observe what happens this time.

Observation: Note down what you see. How does the egg behave in plain water compared to the saltwater?

Results: Record your findings. Did the egg float in the saltwater? Was there a difference in how it behaved in the plain water compared to the saltwater?

Conclusion: Explain why the results occurred based on density. In plain water, the egg sinks because its density is higher than that of plain water. When you add salt to the water, it increases the water’s density, making it denser than the egg, which now floats.

You can experiment further by changing the amount of salt added to the water or trying different liquids like sugar water. See how these changes affect the egg’s buoyancy.

This experiment not only teaches you about the principles of density and buoyancy but also shows you how different solutions can change the behavior of objects in water. Have fun experimenting, and remember to ask questions and think about why things happen the way they do!

3. Rainbow Milk Experiment

Introduction: Get ready to create a swirling rainbow with the Rainbow Milk Experiment! This visually stunning project is ideal for young scientists in the first or second grade to explore the effects of soap on milk and food coloring. You’ll need some help from an adult, so be sure to have one nearby!

Objective: To observe how dish soap interacts with the fat in milk, causing movement in the food coloring that creates a rainbow effect.

• A shallow dish or plate
• Whole milk (enough to cover the bottom of the dish)
• Food coloring (various colors)
• Cotton swabs
• A dropper or small spoon

Hypothesis: Think about what you expect to happen when you add dish soap to the milk with food coloring. Do you think the colors will move, mix, or stay still? Write down your guess.

• Pour enough whole milk into the dish to just cover the bottom.
• Carefully add drops of different food coloring to the milk. Place them around the dish but not too close to each other.
• Dip a cotton swab into dish soap, ensuring it’s not dripping but wet with soap.
• Gently touch the soaped swab to the surface of the milk in the center of the dish or near one of the food coloring drops.

Observation: Watch what happens when the soapy cotton swab touches the milk. Look for any movement of the food coloring and how it interacts with the milk.

Results: Record what you see. Describe the movement and mixing of the colors. How did the dish soap affect the behavior of the food coloring in the milk?

Conclusion: Explain the science behind what you saw. The soap breaks the surface tension of the milk and reacts with its fats, creating movement that pushes the food coloring around. This movement shows how substances like soap can change the physical properties of other liquids like milk.

Try the experiment again using different types of milk (like skim or 2%) to see if the fat content affects the reaction. You can also use different detergents or soaps to see if they cause different patterns or movements in the milk.

This experiment is not only a beautiful display of colors but also a great lesson in chemistry and physics, showing how different substances interact in surprising and colorful ways. Enjoy creating your milk art, and don’t forget to clean up when you’re done!

 4. Baking Soda and Vinegar Rocket

Introduction: Blast off into the world of chemical reactions with the Baking Soda and Vinegar Rocket Experiment! This exciting activity is perfect for first and second graders eager to see science in action. You’ll need some adult supervision, so make sure a grown-up is ready to help with the fun!

Objective: To demonstrate the reaction between baking soda and vinegar and observe how this reaction can propel a homemade rocket.

• 1 small plastic film canister with a tight-fitting lid (or any small container with a pop-on lid that seals well)
• Baking soda (5 grams)
• Vinegar (30 ml)
• Tissue paper
• Safety goggles (to protect your eyes)
• An open space for launching your rocket (like a backyard or park)

Hypothesis: Predict what will happen when baking soda and vinegar mix inside your rocket canister. Think about how it might affect the canister and what the reaction will be like. Write down your prediction.

• Go outside or to a well-ventilated area where you can safely launch the rocket.
• Wrap the 5 grams of baking soda tightly in a small piece of tissue paper. This packet will help delay the reaction, giving you time to close the lid.
• Pour 30 ml of vinegar into the film canister.
• Quickly drop the baking soda packet into the canister with vinegar.
• Snap the lid on tightly and quickly place the canister on the ground, lid side down.
• Step back and watch what happens!

Observation: Observe the canister as the reaction happens. What do you see and hear? How high does the rocket go?

Results: Record the outcome of your experiment. Was the launch successful? How high did your rocket fly? Did it happen as you predicted?

Conclusion: Explain why the rocket moved. The reaction between baking soda (a base) and vinegar (an acid) produces carbon dioxide gas. This gas builds up pressure inside the canister until the lid pops off, pushing the rocket into the air. This is an example of Newton’s Third Law of Motion: for every action, there is an equal and opposite reaction.

Experiment with different amounts of vinegar and baking soda to see if it affects how high your rocket goes. You can also try different sizes of containers to see how they change the reaction.

This experiment is not only a thrilling demonstration of a chemical reaction but also a fun way to learn about forces and motion. Make sure to conduct it in a safe environment and wear your safety goggles to protect your eyes. Enjoy your scientific journey into rocketry!

5. Magnetic Magic – Magnetic Poles and Fields Experiment

Introduction: Explore the invisible world of magnetism with this engaging experiment! Perfect for first and second graders, this activity will help you understand how magnets work, focusing on the poles and the magnetic fields they create. You’ll need some common items from home or school and the help of an adult to guide you through.

Objective: To explore and visualize the magnetic field lines around bar and horseshoe magnets and understand the interactions between the different poles of magnets.

• 1 bar magnet (with North and South poles labeled)
• 1 horseshoe magnet (with North and South poles labeled)
• Iron filings
• A sheet of white paper
• A tray or cardboard to contain any mess
• A compass (optional, for further exploration)

Hypothesis: Before you start, think about what you might see when you sprinkle iron filings around the magnets. What do you think will happen when the North pole of one magnet is near the South pole of another? Write down your guess.

• Place the sheet of white paper on the tray or cardboard to keep your workspace clean.
• Lay the bar magnet and the horseshoe magnet on the paper. Start with them a good distance apart so their fields don’t overlap immediately.
• Gently sprinkle iron filings around and between the magnets. Be careful not to bump the table as the filings align themselves along the magnetic field lines.
• Look at how the iron filings arrange themselves around each magnet. Notice the patterns they form. These lines show the magnetic fields emanating from the poles.
• Slowly move the North pole of one magnet towards the South pole of the other. Observe how the iron filings react. Do the same with like poles (North to North or South to South) and note any differences.

Observation: Record what happens to the iron filings as you move the magnets. How do the patterns change? What does this tell you about how the magnetic poles interact?

Results: Describe the arrangement of iron filings and what it indicates about the magnetic fields. Note any changes when different poles are near each other.

Conclusion: Explain your observations in terms of magnetic poles and fields. Magnets attract when opposite poles are near each other and repel when like poles are close. The iron filings align themselves along the lines of magnetic force, visibly showing the shape of the magnetic fields.

Try using a compass to see how the needle aligns with the magnetic fields. You can also test different materials to see if they are influenced by the magnets, like clips, aluminum foil, or copper wire.

This experiment not only teaches you about magnetism but also lets you see the invisible forces at play. Have fun exploring and always make sure to clean up your space when you are done!

6. DIY Lava Lamp Experiment

Introduction: Ready to light up your curiosity with a colorful DIY Lava Lamp? This experiment is fantastic for young scientists in first or second grade to explore the interactions between oil, water, and effervescent tablets. This safe and simple project is sure to dazzle and teach important scientific concepts with a bit of adult help.

Objective: To understand the effects of density and chemical reactions by creating a homemade lava lamp.

• 1 clear plastic bottle (1 liter)
• Water (about 400 ml)
• Vegetable oil (about 600 ml)
• Food coloring (any color you like)
• Effervescent tablets (like Alka-Seltzer)
• Flashlight (optional, for effect)

Hypothesis: Think about what will happen when you mix oil, water, and the effervescent tablet in the bottle. Predict how the ingredients will interact and what will happen when you add the tablet.

• Fill the clear plastic bottle with 400 ml of water.
• Slowly pour 600 ml of vegetable oil into the bottle, allowing it to layer on top of the water.
• Add a few drops of food coloring to the bottle. The drops will pass through the oil and mix with the water below.
• Break an effervescent tablet into a few pieces.
• Drop one piece into the bottle and watch as the lava lamp effect begins. The tablet reacts with the water to create gas bubbles that rise and fall through the oil.
• Shine a flashlight through the bottom of the bottle to enhance the visual effect, especially in a dim room.

Observation: Watch the bubbles of colored water rise and fall in the oil as the gas bubbles form and pop. Note how the oil and water do not mix.

Results: Describe what you see when the effervescent tablet reacts in the water and how it affects the oil and water mixture.

Conclusion: Explain the science behind the lava lamp. The water and oil separate due to their different densities, with oil being less dense and sitting on top of the water. The effervescent tablet reacts with the water to create carbon dioxide gas, which carries the colored water up through the oil until the gas escapes at the top.

Try using different amounts of oil or water, different colors of food coloring, or different types of effervescent tablets to see how it changes the reaction.

This experiment not only makes for an eye-catching display but also helps understand concepts like density, solubility, and gas formation. Have fun watching your very own lava lamp glow!

 7. Dancing Raisins Experiment

Introduction: Get ready to watch raisins dance in this fun and simple science experiment perfect for young students in first or second grade. This activity demonstrates the principles of buoyancy and gas production in a way that’s both entertaining and educational, with just a bit of adult supervision needed.

Objective: To observe and understand why raisins move up and down in a fizzy liquid due to the formation of gas bubbles.

• 1 clear glass or transparent plastic cup
• Plain water (enough to fill the glass three-quarters)
• Carbonated clear soda (enough to fill the glass)
• Several raisins (4-6)
• A stopwatch or timer (optional, to record the duration of the dance)

Hypothesis: Before starting, predict what will happen when you drop raisins into the soda. Do you think they will sink, float, or dance? Write down your guess.

• Fill the glass three-quarters with plain water and top it off with carbonated soda to make the liquid fizzy.
• Carefully drop 4 to 6 raisins into the glass of fizzy liquid.
• Watch what happens to the raisins for the next few minutes. Observe how they move in the glass.

Results: Record your observations. Do the raisins sink, float, or dance up and down? How long do they continue moving?

Conclusion: Explain the results using the concept of buoyancy and gas production. The carbon dioxide bubbles from the soda attach to the rough surface of the raisins, making them buoyant enough to rise to the surface. Once they reach the top, the bubbles pop, and the raisins sink again. This cycle repeats, causing the dancing effect.

Experiment with different carbonated drinks or try other small, dried fruits or objects like corn kernels or small pasta shapes to see if they also dance. Explore how temperature affects the rate of dancing by using cold versus room temperature soda.

This experiment is a fantastic way for kids to visually grasp scientific concepts and enjoy the magic of simple chemical reactions. It’s perfect for a science fair project or a classroom activity!

8. Color-Changing Carnations

Introduction: Discover how flowers drink water with the Color-Changing Carnations Experiment! This visually stunning activity is perfect for first and second graders to learn about plant biology and capillary action in a fun and colorful way. It’s a simple experiment that requires some adult supervision.

Objective: To demonstrate how plants absorb water and nutrients up through their stems, using carnations and colored water.

• White carnations (several, depending on how many colors you want to test)
• Clear glasses or vases (one for each color)
• Food coloring in various colors
• Scissors (to be used by an adult)

Hypothesis: Predict what will happen when the carnations are placed in colored water. Which colors do you think will show up best in the petals?

• Have an adult trim the stems of the carnations at an angle to allow them to absorb water more efficiently.
• Fill each glass or vase with water and add about 20 drops of food coloring to each, choosing different colors for each container.
• Stir the water to evenly distribute the color.
• Place one carnation in each colored water vase.
• Observe the carnations daily to see how the color travels up the stem and changes the color of the petals.

Results: Record your observations over several days. Note the changes in the color of the petals and how quickly each color appears.

Conclusion: Explain how capillary action works in plants, drawing water and nutrients up through tiny tubes in the stem. The food coloring shows this process visually, changing the color of the carnations’ petals.

Try using different liquids like sports drinks or diluted inks to see if they affect the flowers differently. Experiment with other white flowers to see if they absorb colors faster or slower than the carnations.

9. Invisible Ink

Introduction: Send secret messages with the Invisible Ink Experiment! This project is a fantastic way for first and second graders to learn about chemical reactions and the properties of acids and bases, with just a bit of adult supervision for safety.

Objective: To use a natural acid (lemon juice) to write invisible messages that appear only when heated.

• Spoon or brush
• White paper
• Heat source (light bulb or hair dryer; an adult should handle this part)

Hypothesis: Guess what will happen when you heat the paper that has lemon juice on it. How do you think the message will appear?

• Squeeze lemon juice into a bowl and add a few drops of water.
• Dip the spoon or brush into the lemon juice mixture and write a message on the white paper.
• Allow the paper to dry completely, making the message invisible.
• Have an adult help you heat the paper using a light bulb or hair dryer. Watch as the message slowly appears.

Results: Record what happens when the paper is heated and how clearly the message shows up.

Conclusion: Explain why the lemon juice message appears when heated (lemon juice, being acidic, weakens the paper fibers slightly and caramelizes when heated, making it visible).

Experiment with other natural acids like orange juice or vinegar. Try different heating methods or papers to see which reveals the message most effectively.

10. Homemade Slime Experiment

Introduction: Get ready for gooey fun with the Homemade Slime Experiment! This engaging and tactile project is great for first and second graders to learn about polymers and non-Newtonian fluids. Adult supervision is recommended, especially when handling chemicals.

Objective: To create slime using simple household ingredients and explore its unique properties.

• White school glue (about 120 ml)
• Borax powder (2 teaspoons)
• Water (two cups)
• Food coloring (optional)
• Mixing bowl

Hypothesis: Predict what will happen when you mix glue, borax, and water. What kind of texture do you think your slime will have?

• In a mixing bowl, combine 120 ml of white glue and one cup of water. Add a few drops of food coloring if desired.
• In another container, dissolve 2 teaspoons of borax in one cup of warm water.
• Slowly add the borax solution to the glue mixture, stirring continuously.
• Keep stirring until the slime begins to form and pull away from the sides of the bowl.
• Take the slime out and knead it with your hands until it reaches the desired consistency.

Results: Describe the texture and behavior of your slime. Is it stretchy? Does it bounce?

Conclusion: Discuss the chemical reaction between the glue and borax that creates a polymer, which gives the slime its unique properties.

Try adding different amounts of borax or glue to see how it changes the slime’s properties. Add glitter, beads, or small toys to create different types of slime.

Each of these experiments offers a fun, educational way to engage with basic scientific concepts, perfect for young learners eager to explore the world through science.

That’s a Wrap!

Science is all about curiosity, discovery, and having fun while learning how the world works. Through these 10 experiments, young scientists have not only created colorful reactions and gooey slime but also gained a deeper understanding of important scientific principles. Whether it was watching a volcano erupt, making an egg float, or exploring the magnetic fields, each experiment has shown that science is everywhere—even in the simplest things around us. As you continue to explore and experiment, remember that the journey of discovery is just beginning. Keep asking questions, keep experimenting, and most importantly, keep having fun with science!

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