simple experiments with sound

Top 10 Sound Experiments: Fun & Easy

Sound, an intrinsic part of our lives, is more than just a medium for communication and entertainment. It is a fascinating scientific concept, offering insights into how energy travels and interacts with our environment.

This carefully curated selection is designed for learners of all ages, covering fascinating topics like vibration, sound waves, pitch, and resonance. These hands-on, educational experiments will not only amplify your understanding of the science of sound but also strike a chord with your innate curiosity.

We hope you enjoy this compilation of sound experiments and that it inspires you to continue exploring the wonders of science.

1. How to See Sound Experiment

The How to See Sound experiment is a fascinating way to explore the relationship between sound waves and visual patterns.

The How to See Sound experiment is a fun and insightful experience that is likely to pique your interest, whether you’re a scientific enthusiast, an artist, or just someone who enjoys discovering the wonders of the world around you.

2. Glass Bottle Xylophone

Seeking an innovative and entertaining technique to learn more about the science of sound? With the help of the Glass Bottle Xylophone experiment, students can build their own musical instrument and learn about the fundamentals of sound.

3. Singing Spoons

Do you want to learn more about the science of sound in a playful and imaginative way? Using just a few spoons, the Singing Spoons experiment is a fascinating and fun project that you should try.

4. Make a Straw Oboe

Make your own musical instrument by cutting a straw to a specific length and blowing across the top to create different notes. Experiment with different straw lengths to produce different pitches.

5. Create a Thunder Drum!

Creating a thunder drum is a unique and exciting way to explore the properties of sound and can help students understand these concepts in a more tangible way.

6. Musical Wine Glasses

The musical wine glass experiment is a fun and easy way to explore the science of sound and create your own musical instrument. By filling wine glasses with different amounts of water and tapping them with a spoon, you can produce a range of musical notes and create your own melodies.

7. Tuning Fork Resonance Experiment

The tuning fork experiment is an established representation of how resonance and frequency work in the study of sound.

Students can see and measure the effects of resonance and frequency in this experiment by experimenting with various objects and tuning forks of different frequencies.

A hands-on introduction to the fundamental concepts of sound and waves is provided by this simple yet interesting experiment.

8. The Doppler Effect with Sound

Through the use of sound waves generated by a moving sound source, students can investigate the Doppler effect in this experiment.

Students can learn about the Doppler effect and its use in disciplines like astronomy and radar technology through this exercise in an useful and fascinating way.

9. Soundproofing Experiment 

Students can learn about the science of soundproofing and its importance in building pleasant and effective surroundings through this project, which is a practical and hands-on learning experience.

10. Standing Waves

With the help of this experiment, students can learn about the fundamentals of wave interference and resonance as well as how these ideas are used in real-world situations.

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Science Experiments with Sound: 8 Fun Activities for Kids

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Sound is all around us, traveling in invisible waves. Since we can’t see it, we often take sound for granted. Today we’re doing some science experiments with sound. We’ll have some fun learning how sounds waves vibrate, how we can affect the vibrations, and how this affects what we hear. Listen up & let’s explore!

Jump to your favorite science experiment with sound: Sound Vibrations on a Flat Surface Drinking Glass Bells Cup and String Phone Big Box Bass Sound Tubes Stretched Strings Pipe Organ with Cardboard Tubes Soundproofing

Sound Vibrations on a Flat Surface

Here’s an easy science activity with sound we can do using items you most likely have in your kitchen. We’re going to see how sound waves cause vibrations and the affect this has on objects. You’ll need a few household items:

The plastic acts in much the same way as your eardrum.  When sound waves hit your eardrum, they cause it to vibrate.  In the case of your eardrum, it’s sending those vibrational signals to your brain instead of bouncing grains of salt like we have on our plastic. We found watching the rice move easier than the salt or sugar.

Experiment with different sounds and volumes and note how the salt moves in relation to the sound. We found putting a bluetooth speaker inside the bowl before covering the top with plastic wrap helped a bit. Play something with a thumpy bass line and watch you grains dance across the plastic.

Drinking Glass Bells

Notice how the amount of water in each glass affects the pitch.  Less water makes a lower pitch, while more water creates a higher pitch.  Why do you think that is?

Cup and String Phone

This is a classic, and can be done with plastic cups or tin cans. It’s a great way to experiment with how sound vibrations can travel. We had some plastic cups, which are easier to punch holes in, so this is what we used. Here’s what you’ll need:

Related Posts: Check out our full posts on plastic cup projects and activities with household objects for some fun things to do with items you probably already have around the house. Great no-prep ideas for you and your child!

Big Box Bass

Plucking the string causes it to vibrate.  The inside of the box is a resonating chamber, and the hold you cut in the top is a sound hole; much like an acoustic guitar.  The tighter the string, the higher the pitch that will be produced.  The more slack, the lower the pitch.

We found the box needed some weight inside the box to hold it down while playing it. Free weights, a few bricks, or whatever you can fit inside the sound hole should do the trick. Push down a bit on the broomstick as you play so it is secure on the bottom. Make sure there is tension on the string as you pluck it. Try plucking it and shifting the broomstick so it’s looser or tighter to get some good twangs out of the string.

Sound Tubes

We got some of these “Pull and Pop” tubes for the kids to play with.  They’re fun on their own, but we discovered a cool sound experiment playing with them.  If you expand a tube all the way and swing it around in a circle, it makes a cool sound.  The corrugated shape lends itself well to sound.  These kids toys are also known as a whirly tube, corrugaphone, or bloogle resonator.

What’s Happening?

Pro Tip: If you’re interested in these, get a larger pack .  Our kids loved these so much they crinkled them to death, to the point where we couldn’t collapse some of them anymore.  They’re great to play with, but will only survive so long.

Stretched Strings

Stringed instruments are capable of producing a wide range of pitches.  We’re going to create a simple exercise with one string to experiment with how this concept works.

The popsicle stick in this case is like the bridge on a guitar or violin.  Adding or removing weight from the bucket is similar to adjusting the tuners.  It changes the tension on the string which results in a change in pitch.  More tension makes the pitch higher, and less tension gives a lower pitch.  This simple principle is what makes stringed instruments work.

What do you think would happen if you tried a thicker fishing line or different string?  How would it affect the sound?

Pipe Organ with Cardboard Tubes

DIY Soundproofing

We’re going to look at two major factors: Materials and Shape. Have you ever noticed how some rooms or spaces echo sound and some do not? The surface materials have much to do with how sound waves travel within that space. Materials like tile or concrete reflect the sound, while softer materials like carpeting or foam absorb the sound.

The sound is dampened by the egg carton and towels.  The materials are soft, and absorb the sound instead of reflecting it.  The surface of the egg carton is uneven and reflects the sound at a number of angles, weakening it. 

Science Experiments with Sound – Wrap Up

More fun activities.

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5 Sound Wave Experiments for Kids

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Teaching little ones about the 5 senses can be so much fun!  Today I want to show you some fun and easy sound wave experiments you can do with your kids!

Sound Wave Experiments for Kids:

Following are five fun sound wave experiments you can make at home with just a few simple supplies. Your kids or students will love them.   If you are teaching about the human body and how ears work, or maybe have a lesson on the five senses, I am sure you will find one of these that will work perfectly for you!

Experiment  #1  The Magic Ear Trick

The first sound wave experiment is this magic ear trick.   This sound trick makes you think the sound is coming from the opposite direction from where it really is coming from. It tricks your brain!  We saw this at a science museum a few years back and my kids had so much fun with it that we wanted to try to recreate it at home.

To make it, you need small tubing (I got this fish tank tubing ), two small plastic funnels and a piece of PVC pipe or paper towel tube.

Attach a funnel to the end of each piece of tubing. We secured ours with duct tape .

Put the tubing through the pipe with each one going in the opposite direction.

Place the end pieces in each ear.

Have someone talk into the different funnels. You could move it up behind their head so they don’t know which one you are talking into. Then let them guess which side you are talking on. It will be the opposite ear from where you are making it like a magic trick!

It’s really funny to watch kids faces when they hear it. I love his confused look in that picture above!  It got my son laughing so hard that he could not tell where the noise was coming from!

What’s Happening?

The sound is traveling through the tubes, Your brain thinks the one on the right will be heard in the right ear, but it is the opposite!  It tricks your mind and confuses you!

Sound Wave Experiment #2 The Ringing Fork on a String

For this simple sound wave experiment you just need a fork or a spoon tied onto a piece of yarn.  Make sure the yarn is long enough to hang down from your ears to around your chest or stomach.  Tie the fork right in the center of the piece of yarn or string.

Now, tuck the ends of the yarn into your ears and tap the fork on an object. You will hear a large gonging sound or a ringing in your ears!  The funny thing about this is that nobody else hears it like you do.  And everyone is shocked at how loud the sound is!

The Science Behind It:

When the fork hits another surface it will vibrate.  These vibrations make the air around it move, too.  These are sound waves! The vibrations, or sound waves, move up the string and allow your ears to hear it. Sound travels best through a solid object, no the air.

Sound Wave Experiment #3 Make a Cup and String Phone

This is a great classic experiment that’s been around as long as I can remember. But it is still so much fun to do with young kids!   You need two plastic or paper cups and a long piece of string or yarn.

Poke a small hole in the bottom of each cup.  Put the string through the holes and tie knots on the inside to keep the string in place.  Do this with both cups.

Now pull the string tight- it needs to be tight for the phone to work and the sound waves to be able to travel through the string. On person puts the phone to his or her ear and the other to their mouth. Whisper or talk quietly into the cup and the other person will hear the sound of your voice in the cup!

My kids like to make two to use at once, then they can both talk and listen without switching the cups back and forth.

When we talk, our vocal cords vibrate beginning the motion of the sound waves.  Our ears have tiny hairs inside that pick up those sound wave vibrations and send them to our brain to translate.  When you talk through the phone, the string carries those waves from one cup to the other allowing us to hear each other!

Experiment #4 Make a Buzzing Bug Noisemaker

This is a fun experiment!  You can find all of the instructions to make it here:  Sound Experiment: Buzzing Bug Noisemaker Toy

This buzzing bug noisemaker simulates the sound of insect wings that bus when they fly.  It’s simple to make and kids love playing with them! You just spin them around and listen to them buzz.

Sound Wave Experiment #5  Seeing Sound Waves~ Dancing Sugar

This is an easy experiment to put together and a great visual for seeing how sound waves work!

Put a phone in a glass.  Turn on some loud music with a lot of great bass.  Cover the glass with plastic wrap and sprinkle some  grains of sugar on top of the plastic wrap.  You will be able to see the sugar dance!  It is really cool.

Now explain to the kids how this works!  The vibrations from the sound waves are making the sugar move.

Expand this lesson on ears and sound  by reading The Ear Book by Al Perkins with your kids. It’s such a fun one!

Want more sensory activities for the 5 senses? Check these ones out:

• Try this Guess the Spice Activity for the sense of smell.
• Try this Tapioca Pearl Sensory Play activity for the sense of touch.
• Try a Cake Chemistry Experiment for the sense of taste.
• Try Color Mixing with Light for the sense of sight.
• Five Senses Activities for Kids

Former school teacher turned homeschool mom of 4 kids. Loves creating awesome hands-on creative learning ideas to make learning engaging and memorable for all kids!

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Sound Experiment for Kids to See Sound

I love science! There are so many hands-on science experiments you can do with kids! Right now we are learning all about sound in our classroom. I have personally found that having a sound experiment for kids to demonstrate what they are learning is the best way for children to really understand the material.

So, I came up with a few sound experiments for kids, including my favourite tuning fork sound experiment and vibrating rice.

Keep reading for a few simple, hands-on ways to making learning about sound fun and meaningful.

The experiments work well in the classroom or at home.

Introducing big, but important concepts, such as sound and hearing, to young children may seem early; however, I am always amazed by how much children of all ages learn from hands-on science experiments.

When children are interested in a topic, they absorb and understand a lot of the material.

Slinky Sound Experiments

Kids are naturally drawn to do experiments and play and explore with their hands. I like to do this sound experiment with kids as a way to introduce big science concepts to young minds.

I have done this experiment with kids aged 3-10 and it is a hit with all of them. All you need is a slinky. A large one works best, but any size will work.

Sound Experiments Steps

I started by using a large slinky and having one child and I hold the ends on opposite sides of the carpet. I banged the slinky to send a wave to the other side. We talked about how sound travels in waves.

A big, fast wave equals a loud sound – like someone yelling. A small, slow sound wave may be someone humming. I either hummed or yelled as I banged the slinky to replicate how the volume and sound travels.

Sound Waves

Sound Experiment

The main idea you want to make clear is that sound travels in waves. Also, it is important that children know that sound waves are invisible.

The slinky is just a fun way to show what we can’t otherwise see.

Some students even noticed the slinky bounce back after reaching the student holding the other end of the slinky. This was a great chance to discuss echoes and how sound bounces.

Fork a Sound Experiments

This is perhaps my favorite sound experiment for kids! I love the excitement that it causes and the ‘explosive’ result. Also, kids of all ages are able to get hands-on and do the experiment. You only need a few materials:

• Plastic Wrap
• Uncooked rice or Large Sparkles (I added some food coloring to mine, but the color is just for fun.)
• Tuning Forks

Since I did this experiment with several groups, I had several containers ready to go. I grouped Children into groups. The smaller the groups the better.

Cover each container tightly with plastic wrap. The wrap has to be tight or the experiment will not work.

To start, I introduced the children to tuning forks. Many had not used or seen one before. Some recognized the fork being used in their music class before.

I gently banged one of the forks onto the carpet and held it up. We could hear a bit of a sound coming from the fork.

I had a child beside me gently touch the fork. They were able to feel that it was vibrating, but as soon as they touched the tuning fork the vibrations stopped.

We talked about the fact that when it was vibrating, it was making a sound. When it stopped vibrating, the sound also stopped.

Children then each had a chance to gently try out the tuning forks. They loved the hands-on experience. (I would suggest making sure to tell children not to hit the tuning forks too hard. Just a bit of a bump will work. Also make sure they are not banging it on anything that could break.)

Next, children went to the tables with a small group. Each group got a container with the plastic wrap stretched across it. I then gave each group a small container of rice. You only need a small amount for each group.

Also, the more rice you give each group the more clean up there will be. The rice will go flying!!! (But that’s also the fun of the experiment.)

Children then pour the rice onto the plastic wrap. They make a guess what will happen once they touch the tuning fork to the plastic wrap.

Once they have guessed, they are ready to do the experiment.

When banged, the tuning fork vibrates, which creates a sound. Tap the fork so that it is making a sound, and vibrating.

Next, touch the vibrating fork to the plastic wrap, but be sure not to touch the side of the bowl. You only need to touch it gently to get the result.

As soon as the vibrating fork touches the plastic wrap, it sends vibrations across the wrap and to where the rice is sitting. These vibrations cause the rice to “jump” until the vibrations/sound stops.

The tuning forks are ideal to have on hand when teaching or learning about sound.

There was so much excitement in the room when the rice started bouncing everywhere! The mess is definitely worth the learning that occurred! Since the materials you need are so simple, you can repeat this tuning fork experiment several times.

I really wanted each child to be able to do the hands-on experiment. After each child got the rice to jump, the group worked together to gather the rice and put it back on the plastic wrap for the next child’s turn.

Repeat as many time as you wish!

Sound Experiments Extension Activity

The tuning fork experiment sparked so much interest in my classroom that I wanted to extend our activity for another science lesson. If you have all of the materials for the fork a sound experiment, all you need extra to do another experiment is water!

As an extension, you can remove the plastic wrap and fill the glass bowls with water. I also added a few drops of food coloring just for fun.

Repeat the experiment above by banging the tuning fork and then touch it to the container with water. Make sure to only touch the water, and not the container.

When the fork is touched to the water it makes the water splash out of the bowl. This sound experiment is an easy way to show kids that sound causes vibrations/movement. Happy experimenting!

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7 Cool Sound Science Experiments for Kids

Nov. 19, 2018

When it comes to science experiments, some of the most enjoyable involve the science of sound. If you’re looking to dazzle your little learner with exciting new experiments, look no further than simple sound science experiments that use everyday household items to bring sound to life. Let’s explore 7 riveting ideas to discover the science behind sound! Watch educational videos with scientific experiments and show them to your child.

The Classic Paper Cup and String Phone

A much-loved childhood project, the paper cup phone is much more than a fun and old-fashioned way for kids to communicate throughout the house. This elementary sound science project shows kids how sound waves can travel through a string and be converted back to audible sound at the opposite end. 

Supplies Needed: 

• 2 paper cups
• Long string, like fishing line, kite string
• A sharp pencil or needle to poke holes in the cups

What to Do: 

1. Start by cutting a long piece of string of at least 50 feet. 

2. Poke a small hole at the bottom of each cup. 

3. Using each end of the string, thread it through the bottoms of the cups, tying a large knot so that the string does not fall out of the cup. If you make the holes too large, use a washer or paper clip to hold the string in place so that it does not pull out of the cup. 

4. Move into position and encourage your child to move away from you so that the string is far enough to make it tight. Be sure that the string does not touch any other object and that it remains suspended in air as you complete the experiment. 

5. Taking turns, talk into the cup, while the other person listens by putting the cup to their ear. Tell your child to repeat what he or she hears after you have spoken and do the same in return! 

After the experiment, explain to your child what is happening: sound waves created by talking through the cup travel through the line to the other end, converting back to sound on the opposite side! 

Make Music with a Straw Pan Flute

Perfect for younger children, the following sound waves experiment not only involves creating a fun musical instrument your child could play with, but teaches kids how length can affect the pitch of sound waves. 

Supplies Needed:  

• At least 9 or 10 straws, more if desired! 
• Clear gift wrap tape

1. Take the straws and line them up side-by-side and cut them at an angle at the top. 

2. Tape the straws together to make a pan flute. 

3. Instruct your child to blow through the straws. Which straws make higher and lower pitches? Why? 

Feel free to use more straws and experiment with different lengths to produce different pitches and sounds! Ask your child to explain what happens to the sound the shorter a straw is cut, and create double pan flutes to make harmonies to further explore how length alters the pitch. 

Listen to Sounds Travel Underwater

Sound travels well through air, but it travels even better through water! This easy sound experiment for kids can be done in a jiffy out on the back porch. 

• A bucket filled with water
• A large plastic water or soda bottle 
• At least 2 kitchen knives
• Scissors or sharp knife to cut the bottle

1. After filling the bucket with water, take a sharp knife or kitchen shears and help your child cut off the bottom of the plastic water bottle. Be sure that the cap is taken off of the bottle. 

2. Instruct your child to place the bottle in the water so that the cut bottom is in the water. Your child will then put his or her ear to the top of the bottle to listen. 

3. Using the kitchen knives, clang them together to make a sound, but do this in the bucket as your child is listening. What does your child hear? 

Your child has probably noted that the sound of the clanging is loud and clear. Water travels faster through water than in the air, and animals that live underwater are able to hear sound clearly. Discuss the results with your child, to teach him or her more about the conduction of sound waves through water. 

See the Sound

Sound vibrations travel through air, water, and even solid objects, but it’s not possible to see the waves. What if we could see the waves in another way? This science of sound experiment makes sound more visible by forcing objects to react to the sound vibrations. 

• Empty clear mixing bowl
• Plastic wrap
• Large rubber band
• Sugar crystals- Sugar in the Raw works great, or make sugar crystals in another science experiment!

1. Wrap a sheet of plastic wrap over the mixing bowl so that it’s taut, and secure with the large rubber band. Be sure that the plastic wrap is tight and does not sag. 

2. Place a few of the sugar crystals on the top of the plastic wrap, placing them in the middle of the wrap. 

3. Instruct your child to get close to the sugar crystal and say something loudly! What happens to the crystals? Do they move? 

4. Experiment with louder and softer words or sentences to watch the sugar crystals react to the sound vibrations! 

While your child might think it’s his or her breath making the crystals jump and move, but it’s actually the sound vibrations. Try different sounds besides ordinary speech and see how the crystals come to life!

Make a Stick Harmonica

Making musical instruments are easy and fun, and they teach kids about sound waves and pitch. This experiment is much like the pan flute above, but kids can alter the pitch by sliding the straws without reassembling the harmonica. 

• 2 large craft sticks
• 1 wide rubber band
• 2 smaller rubber bands 
• 1 plastic drinking straw

1. Using the scissors, cut the straw into 2 one-inch pieces and set aside. 

2. Take the wide rubber band and stretch it length-wise around one of the jumbo craft sticks and place one of the straw pieces under the rubber band, close to the edge on one end.

3. Take the other craft stick and place it directly on top of the craft stick with the rubber band. Secure them together at the ends using the small rubber bands. 

4. Finally, take the last piece of straw and place it in the harmonica between the sticks on the opposite end from the other, but this piece should be fit above the wide rubber band instead of below it. 

5. Encourage your child to play the harmonica by blowing in the center of the harmonica! Explore different pitches by moving the straw pieces!

After playing the harmonica, don’t forget to complete the sound experiment by talking about the mechanics of the harmonica. The vibrating rubber band makes all the noise, and the closer the straw pieces are to the center of the harmonica, the higher the pitch will be due to the shortened length of the band! 

Experimenting with Sound Waves

It might be hard to imagine that sound waves can travel through solid objects as well as through the air. This simple but exciting sound waves science activity will demonstrate for your child how sound can and does indeed travel through solid objects!

• Metal kitchen spoon- a large metal measuring spoon works great! 
• At least 30 inches of kite string

1. Stretch out the string and tie the handle of the spoon in the middle of the string.

2. Take one end of the string and tie around your child’s pointer finger. Do the same using the other end, but tie this string around the pointer finger of your child’s opposite hand. 

3. Instruct your child to put his or her fingers, with the string wrapped around each, into their ears. 

4. Help your child lean over so the spoon dangles and help him or her swing the spoon so it hits a nearby door or wall. 

5. Hit the door or wall again, but this time with more force. What does your child hear? 

Your child should hear a bell-like sound travel up the string from the spoon and into their ears. Discuss with your child how the sound waves created from the spoon hitting the door moves through the string until he or she is able to hear it!  

Xylophone Water Jars

Musical instruments are so much fun to make! This sound activity teaches children how varying levels of water in containers change the pitch of the sound created. 

• 4 empty and clean baby food jars 
• 4 different colors of food coloring

1. Help your child fill each jar with varying amounts of water. 

2. Add a few drops of food coloring to each jar. 

3. Using the mallet, instruct your child to firmly tap the outside of each jar. What sounds are being made? Which jars have the highest or lowest pitch? 

Encourage your child to hypothesize why some jars emit a lower sound, while others are higher. Play around with the water levels in each jar and experiment with pitch! 

Learn Science with Kids Academy Classroom!

Use this interactive Classroom by Kids Academy called Sound is All Around Us to teach first graders the basics of sound science. OPEN THE CLASSROOM . 

After clicking "Next", you'll find a set-up lesson with an educational video, accompanied by practice worksheets and summary quiz to help kids better understand and remember the learned material.

Equipped with our extensive learning resource library, Kids Academy Classroom allows teachers and parents to create lessons and share them with the young smarties in a couple of clicks. 

Go directly to the Classroom page and create a quick classroom on any topic you want! After students complete the lesson, you'll get access to a report about their performance. Check out our  Classroom Guide article  for more information!

Now that you have 7 cool ideas for exciting sound science experiments, it’s time to get started! Your child will love learning all about the science of sound and the endlessly fascinating ways sound waves can travel through air, water, and objects. Don’t forget to check out our science worksheets and activities to supplement your child’s learning in between all your child’s experiments!

Sound Experiment – Sound Absorption and Reflection

May 7, 2013 By Emma Vanstone 2 Comments

Today, I am very excited and honoured to have the lovely Maggy Woodley guest posting for us. Maggy blogs at Red Ted Art  and has a great sound science experiment to show us.

Hello! Lovely to be visiting Science Sparks again. I think Science Sparks is doing AMAZING things in getting families and bloggers into science. Everyone is doing it now, be it in Science Hangouts or just having fun with the kids at home. HOORAY for Science Sparks. This makes it even more humbling to be here today with our simple sound experiment!

I usually blog at Red Ted Art and Life At The Zoo. Over on Red Ted Art, we have been making guitars. Which, of course, have a fabulous Science element to them: Acoustics! What is sound, and how does it work?

What is sound?

Let’s recap: Sound is Energy. An energy that is caused by something moving backwards and forward – like the vibration on a guitar’s string.

Sound reflection

For Science Sparks, we explored what happened to sound in different environments – have you ever been in a room with nothing in it? Does it sound echo-y? What is going on?

What is acoustics?

A smooth flat surface – such as brick, metal or wood, reflects sound – it makes it bounce and come back straight at us. Making it often sound louder (as we have lots of sound waves heading our way) and sometimes echo-y (depending on how large the room is and how long it takes for the sound to “come back to us”). This doesn’t happen in a room that has a sofa, carpet and curtains – the soft furnishings absorb the sound.

Sound experiment

We can test this with our toy guitar!

We did three things and guessed what the sound would be like:

1) our fingers only

2) the container and elastic bands

3) the container, and bands, stuffed with a tea towel.

Fingers 

We have an elastic band on it’s own – we can hear it, but we have to listen really closely. It also sounds “deeper”. The sound is sent in all directions and “lost” in the large room we are in.

We have our empty container with the strings.

The sound is much louder and clear. As expected you can really hear the different notes clearly.

 The container stuffed

He stuffed a tea towel into the container – assuming it would absorb most of the sound. It DID sound a tiny bit quieter, but not as much as expected. I suspect that this is because our strings are wrapped all around the container and that it is still reflecting a sufficient amount of noise energy. Yes, some is absorbed, but we would have to stuff it with more to make more of a difference.

This is the fun of science – thinking about what you expect, observing what is happening and discussing results and finding explanations. I am now on a mission to find some objects that fully muffle our guitar (I suspect placing our duvet all around our container AND stuff it with something REALLY soft, will achieve the desired result!).

Thanks for having us and letting us explore Acoustics with this super simple sound experiment .

Last Updated on January 9, 2023 by Emma Vanstone

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Reader Interactions

May 13, 2013 at 8:47 pm

This is fantastic – and what a great idea to explore science of music and how reflection and absorption of the sound can be changed.

Thank you for linking up to Tuesday Tots just to let you know that I will be featuring this over on Rainy Day Mum this week.

July 22, 2013 at 4:16 pm

Thanks for sharing in this in the After School Link Up! I’ve featured Exploring Music with Kids this week including your link as a feature! http://theeducatorsspinonit.blogspot.com/2013/07/music-ideas-for-summer-fun-after-school.html

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Posted on Last updated: November 24, 2020 By: Author Kim

Categories STEM Activities

How Did You Hear That? Simple Sound Science for Kids

Simple Sound Science Activities for Kids

Let’s talk about sound.  My children are very familiar with it, at least they are quite good at volume.  Kids are really great at producing sound, and most of them enjoy being loud.

So why not take advantage of that interest and talk about how sound works.  How do we hear sounds? What are sound waves?  Can we see sound?  Give your children an excuse to be loud for an afternoon.  Here are 4 easy and fun sound science experiments for toddlers and preschoolers.

What's In This Post?

What are Sound Waves?

How does sound work.

Before we get into the fun activities, let’s learn a bit about how sound works.

What is sound?  Sound is carried by waves, not unlike the waves we looked at when we learned about color .  These waves require a medium to travel through, which on earth is the atmosphere that surrounds us.

We can’t see them, but there are millions of molecules floating around everywhere.  These molecules transfer energy, which is how a wave moves.

This is the same way colors move as waves through the atmosphere.  The difference between sound and color is that color comes from light waves and sound waves come from vibration.

Sounds originate through some sort of vibration.  Think of hitting a gong.  When you strike it, it vibrates.  These vibrations are energy waves that travel through the air.

Only unlike color, which is perceived with the eye, these waves interact with our eardrums.  Our eardrums vibrate and pass on the waves to our inner ear, where our brain can perceive it as sound.

(There is more to the anatomical part of hearing, but our focus right now is on the sound waves outside of the ear.)

Want more wave science? Learn how colors work!

Properties of Sound Waves

There are two big properties that describe sound waves: frequency and amplitude .

Frequency is how quickly the wave is moving.  Is it a quick vibration that created the sound, or a slow one?

Frequency impacts pitch.  A fast frequency will create a higher pitch.  A slower frequency has a lower pitch.

This is a great time to explain pitch to little ones too.  It’s easy to demonstrate.  Speak in a high voice (like you just had some helium), this is a high pitch.  Have your child try it.  Then have them speak in a very low voice (I told Ben to talk like Daddy), this is a low pitch.

Amplitude is how big the wave is, and this affects volume.  (This is where the word amplifier comes from.) A big wave will have a loud sound.  A small wave will have a quiet sound.

Here is an example to help visualize these.  Think of a great big gong.  When you hit it big slow vibrations are created.  It makes a deep, loud sound.  This is because it has big waves that are moving slowly.

Now think of a tiny gong.  When you hit it you create small fast vibrations.  It makes a high sound and is quieter than the big gong.  This is because it has small waves moving quickly.

See waves in action with science by the pool.

Sound Wave Activities

Now that we know a bit about how sound waves work, let’s explore them in action!

Balloon Amplifier

Want to make the world’s easiest amplifier?

Blow up a balloon, hold it up, and tap on it.  It doesn’t make a super loud sound.  Next, hold the balloon up to your child’s ear and lightly tap on it.  It sounds pretty loud!

Why does this happen?  When you blow up a balloon you are packing it with air molecules.  They are very close together and transmit sound waves super well compared to the air just around us normally.

When we tapped the balloon while we were just holding it those waves had to move through the less compressed ambient air to get to our ears, and the sound is softer.

When we hold the balloon up to our ears the sound just has to get through the tightly packed molecules in the balloon and we hear a louder sound.  It is amplified.

Can you see sound?  Well, we can’t see the sound waves as they move through the air.  (Though picture the waves you see when you drop a rock into water. They look a lot like that!) But we can see the vibrations that create sound transmitted between surfaces with a little help.

• Plastic Wrap
• Uncooked Rice
• Metal Spoon

Put the plastic wrap tightly over the bowl.  (One sheet, as tight as you can get it.) Put about 1 teaspoon of rice on the plastic.

Then hold the metal pan close to the bowl and have your child hit it with the spoon.  The harder they hit it the better.  The rice will dance!

What is happening is that the pan vibrates, creating a sound wave.  This wave is transmitted through the air molecules and cause the plastic wrap to start vibrating as well, making the rice dance!

You are seeing the result of the sound waves in the rice.  Are any patterns formed? Try hitting the pan harder and then more gently.  How does the behavior of the rice change?

If you want to be a cool mom see if your child can hit the pan hard enough to bounce the rice right off the plastic!

Transmit Sound Through String

Remember making telephones with your friends using cans and string? Yeah, me neither.  I’m not that old.  (And how did kids drill holes in the cans anyway?)  But we can use this idea to show kids how sound travels through a medium.

• A Long Piece of Yarn
• 2 Spoons of Different Sizes

Take the yarn and tie it around the spoon so the spoon is in the middle of the piece.  Take the two long pieces on either side and have your child hold them up to their ears.

You want to bunch up the string loosely and have them put it in their ears.  Not too far (safety!), more like you are just trying to block out other sounds.  Then tap on the spoon with the pencil.  And watch their faces.

Hitting the spoon with the pencil causes the spoon to vibrate.   Remember, sound needs a medium to travel through, and in this case, the yarn is that medium.  It transmits the sound directly to your ears.

What makes it so much louder?  In an open room, sound waves transmit in all directions.  So what you hear is not everything that is being produced.  Air molecules are not very tightly packed, which also makes the sound less intense.

With the yarn most of the wave is being sent right to your sound receptors, making it more distinct and louder.

Have your child try the other spoon.  How do the sounds compare?  Try different lengths of string. What does that do to the sounds?

Want to make more music? Here are 5 easy DIY instruments to make at home!

How Do Echos Work?

How do echoes work? What makes you hear a sound a second and third time like that?

• 2 Paper Towel Tubes

Prop the pie pan up on a table so it is vertical.  Take one paper towel tube and place it on the table, angled a bit but aimed at the pie plate.  Take the other paper towel and have it angled the opposite way, also aimed at the pie plate.

Have your child put his ear to one of the tubes while you talk softly into the other.  You can hear what is said through the other tube!

The sound waves you create by speaking travel through the tube.  They are directed through the tubes, hit the pie plate, and bounce off, traveling back through the other tube.  You are hearing the echo.

An echo is when a sound wave bounces off of a surface.  Some surfaces are better for echoes than others.  For example, bathrooms are often very good at creating echoes.  This is because they are usually full of hard surfaces like tile that bounce back sound waves effectively.  A fun bath time activity is to explore your echo with your child.

These are simple and fun ways to demonstrate how sound waves work with kids.  And you don’t have to stop with these.  Make some musical instruments and see what other vibrations you can create.  (This is also a great sensory activity.  Learn why those are so important: The Big Benefits of Sensory Play )

Take a nature walk and tap on things with sticks.  Try making high pitches and low pitches.  Explore echoes.  Sounds are all around us.  Encourage your kids to take a listen and explore the science behind the sound.

Find your next fun activity!

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Sunday 24th of March 2019

My son absolutely loved these activities! We had a spoon on a string for days. Thank you so much for the ideas, it made our preschool time fun.

I'm so glad he liked it! We love the spoon one too. It's so exciting when our kids get into STEM!

Monday 9th of July 2018

These are wonderful activities! My girls are going to love learning about sound!

Saturday 23rd of June 2018

These are such fun and easy sound experiments! Great ideas.

kimcartwright

They were fun! It's cool to look at something we experience every day in a new light.

Teach Starter, part of Tes Teach Starter, part of Tes

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Fun Sound Experiments for Kids to Add to Your Sound Energy Lessons

Written by Jeanne Sager

Did you hear that? We’re pretty sure we heard that you were looking for some new sounds experiments for kids to add to your teacher toolbox.

While most kids are pretty accustomed to the concept of sound itself — ahem, 0 voices , kiddos — teaching kids how the vibrations of objects translate into sound isn’t just a core part of the science curriculum. It’s also a means to connect kids in a very real way to the world around them. So how do you start teaching kids about sound? And what are some sound science experiments you can try in the classroom? Let’s dive in.

Sound Experiments for Kids

Let’s face it — teaching about sound is going to vary depending on the subjects you teach. If you teaching English, you may start with onomatopoeia , working with kids to add words like “pop” and “bang” to their writing to bring the richness of sound into their narratives. And if you’re a music teacher, you’re going to go straight for the instruments.

We can’t cover all the pretty cool ways out there for incorporating the teaching of sound into the classroom, but we can tell you some of the Teach Starter teacher team’s favorite sounds experiments for kids!

For each sound experiment, students can draw a hypothesis about what they think will happen using the scientific method (grab this free poster outlining the steps they’ll need to follow!), collect and record data, then interpret their results and draw conclusions !

Box & Rubber Band Guitar

• Small shoebox or gift box (no lid required)
• Rubber bands of different widths

The Experiment:

• Have students sort through the rubber bands and arrange them so they’re stretched across the box from thinnest to thickest.
• Have students pluck each rubber band one by one like a guitar and record their observations.
• Students can then add a ruler set on its edge like a bridge across the rubber bands and pluck the bands again, recording observations.

This simple sound experiment teaches kids about sound waves as they learn that the thinner rubber bands produce higher pitches and shorter sound waves! The addition of the ruler helps them to understand how a dampener works to affect pitch.

Screaming Balloons

Balloons are a staple of STEM for teaching kids about static energy, but this sound experiment puts these handy party supplies to use to discuss another kind of energy!

• 2 packages of large balloons (at least enough for each of your groups of students and a few spares in case a balloon is popped)
• Hex nuts, pennies, marbles, and other small objects
• Have students place one of the small objects of their own choosing inside the balloon
• One student in the group should blow up the balloon about three-quarters of the way, and tie it off (they may need a bit of help with this)
• Students spin the balloon around in the air and record their observations
• Students then repeat the experiment with each of the small objects in different balloons.

Your students should make their own observations, but — spoiler alert — the hex nut will likely make a “screaming” noise as its six sides cause vibration across the balloon!

Have more balloon sound fun — download our sound science task cards for a buzzing balloons experiment and five more fun investigations. 

Make Stick Harmonicas

Building their own instruments is a fun way to integrate project-based learning into your lessons, and making your own harmonica is a great way to learn more about sound waves.

• Plastic straws and paper straws
• Large popsicle sticks
• Wide rubber bands
• Smaller rubber bands
• Cut 2 1-inch pieces off of the straw.
• Stretch your wide rubber band length-wise around a large popsicle stick.
• Place a straw piece under the rubber band, close to the edge on one end.
• Place a second popsicle stick directly on top of the one that’s already rubber banded.
• Secure the sticks together at each end using the small rubber bands.
• Place the second straw piece in the middle of your new “harmonica” right between the sticks on the opposite end from the other. (Note: This straw piece should sit above the wide rubber band instead of below it.)

Students “play” their new harmonica by blowing into the straw pieces. To experiment with pitch, they can move the straw pieces around their instrument.

If you have paper straws, kids can replace their plastic straw pieces with paper ones, making predictions about whether or not they think the different material will affect the sound and recording their observations.

Some questions to ask:

• How did moving the straw pieces affect the sound?
• How did the different straw materials affect the sound?

Bonus: Have your students design their own musical instruments  and put them together — like this fun coffee can and rubber band contraption!

Looking for more resources to teach about sound?

Teach Starter collaborator and Texas teacher Heather Chambers created these fun science center activities for third through fifth graders to determine different types of energy, including sound energy!

• Forms of Energy Task Cards
• Forms of Energy Sorting Activity

Or check out our full collection of elementary school science teaching resources !

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Science Fun

Light And Sound Science Experiments

Easy light and sound science experiments you can do at home! Click on the experiment image or the view experiment link below for each experiment on this page to see the materials needed and procedure. Have fun trying these experiments at home or use them for SCIENCE FAIR PROJECT IDEAS.

Clucking Chicken In A Cup:

Talking String:

Teach A String To Talk

Trombone Straw:

Noisy Paper:

Bug On A Leash:

Super Easy Pan Flute:

Make Music With This Easy Sound Experiment

Duck In A Cup:

Crazy Kazoo:

Andrea Knight

Teacher · Learner · Author

Sound Experiments

This science unit is so fun. It’s loaded with my favorite sound experiments, like this one. I first saw this idea in a library book and, to be honest, I didn’t expect it to be that big of a deal (or even work, if I’m still being honest). But to my surprise, it actually delivered. I think I suffer from Pinterest-Fail PTSD.

Singing Spoons  is a fun way to show kids how volume and pitch change depending on whether sound waves are traveling through the air or through a solid, similar to the way a stethoscope works. It’s one of our favorite sound experiments and is pretty easy to set up. Just use tape to connect three metal spoons to a piece of string or yarn. Then, jiggle the string so the spoons swing into one another and observe the sound they make. It should sound dull and tinny. Next, wrap the ends of the string around your fingers as if you were going to floss your teeth. Place only the yarn-wrapped fingers in your ears (again, think of a stethoscope) and swing the spoons again. Notice how the pitch and volume change.

Even the adults in my house thought this was cool. And one of them is fairly hard to impress.😉

This experiment can easily be done without these sheets👇, but I like reading procedural and informational texts with my students and I also like having a place for them to record their own ideas during investigations.

More Sound Experiments

Hands down, the most satisfying part of planning this science unit was finally engineering a harmonica that actually works! I’m not exaggerating when I tell you how much we were geeking out over this one… maybe because it was our third attempt. But I guess that’s the nature of science experiments, right? In the one pictured below, changing the distance between the pink straws changes the pitch of the sound. Shorten the gap and the pitch will rise. Spread them back out and the sound will become lower. It’s all about vibrations and sound waves .

And the bee?🐝 If you swing it like a lasso above your head, it really does buzz! It’s another fun way to teach your students that vibrations cause sound.

I created student recording sheets for these sound experiments, as well as procedural posters (with picture support) and kid-friendly explanation sheets. These explanations help young children understand the science they’re observing, but I also like how they give families an age-appropriate context to build from when they want to talk to their kids about science.

Making a sound wave model takes some time, but the wow factor can’t be denied! You only need three things to make your model: duct tape, wooden skewers, and clay.  NOTE:  To save time, we built ours using jellybeans, but I think the weight of the clay would provide an even better result. If you use clay, roll each ball to roughly the size of a large grape.

Nonfiction Science Text

I have a hard time finding science material my first-graders can actually read, so it has become my habit to just write our own. It’s a win-win really because then I have a paper copy for each of them. By having their own, we can not only read it together, but the kids can practice it independently and even take it home to share with their families. The books serve double-duty during reading and phonics instruction, too. We can highlight key vocabulary words, find and circle word wall words, and even personalize the interactive pages.

This science book, What Is Sound? , introduces children to the concept of sound and how it behaves. Key science vocabulary such as pitch , volume , vibrate , and echo are emphasized in the text.

Key Vocabulary Posters

There are some pretty BIG words for some pretty young kids in this science unit, so I created a set of posters to help the children understand and remember them. Each poster features the key science term, a colorful graphic, and a kid-friendly definition. The set includes 8 different posters for the following vocabulary words:

• communicate

Key Word Game Cards

Mini-versions of the key word posters have been included in the resource. Originally, I just intended to use them as cards in a “Memory” style game, but they’re also good for student-pairing activities and vocabulary review. There are nine pairs of words in the set: sound, waves, vibrate, volume, pitch, echo, ear, communicate, and loud .

Student Worksheets

I also included some additional worksheets to help support science instruction and provide a connection to other subject areas, such as writing and phonics.

You can preview more of this first grade science unit👉   HERE . It includes printable materials for teaching children the science behind light and sound, as well as how we use both to communicate with others.

Science Ideas on Pinterest

Even though I teased about a Pinterest-Fail at the beginning of this post, I do love Pinterest. (I have discovered though, if it looks too good to be true, it probably is.😂) If you’re planning a science unit on the study of light and sound, click over to my Pinterest board:  Light and Sound Science . I’ve added pins that lead to great ideas for supporting your instruction. You’ll find science videos, book suggestions, integrated projects, and more.

Recommended Book List

Check your school or local library for titles to support your science instruction. These are some of the books I’ve used for read-alouds and to help build my own background knowledge as I planned the unit.

• Sounds All Around by Wendy Pfeffer
• How Sound Moves by Sharon Coan
• How Does Sound Change? by Robin Johnson
• Oscar and the Bat by Geoff Waring
• The Listening Walk by Paul Showers
• Sending Messages with Light and Sound by Jennifer Boothroyd

CLICK👇TO PREVIEW THE RESOURCE

LIGHT AND SOUND SCIENCE UNIT

Happy teaching!

MORE SCIENCE POSTS FOR 1ST GRADE

In the Loop

School • Things To Do

3 Fun and Easy Sound Experiments for Kids

May 15, 2022

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How do you explain ‘sound’? Why do we have two ears? Can you hear in space? Dr Naomi Lavelle from Dr How’s Science Wows explains and explores the science of sound with 3 fun and easy sound experiments for kids to try.

Science is all around us, from the air we breathe to everything we can see, smell, touch, taste and hear around us. Encouraging a love of science can start at a young age, and you can do plenty of easy science experiments at home using normal household items.

With these three simple sound experiments, your child can learn all about sound – perhaps something we don’t really think about too much?

YOU MAY ALSO ENJOY: Download Your FREE Fun Sound Scavenger Hunt for Kids

What is Sound?

Sound is a type of energy made by vibrations. These sound vibrations move through the air (or other matter) to our ear and our brain can then work out what we are hearing.

Sound vibrations travel as a type of wave that we cannot see. These sound waves need something containing molecules (particles) to travel through. Sound waves can travel through solids, liquids and gases (air), because they are made up of molecules. The molecules carry sound waves by bumping into each other, just like dominoes knocking each other over.

Did you know? Sound waves travel in water at a speed of nearly one mile (1.6 km) a second, which is more than four times faster than sound travels through air!

Why Do We Need Two Ears?

We need two ears to work out exactly where a noise is coming from. Our brain can compare the level of noise reaching each ear and calculate the position of the source of the noise.

Did you know? During the making of the film Jurassic Park , Stephen Spielberg wanted a dramatic effect to signal the arrival of the T. rex.

Inspiration finally came while he was driving home listening to Earth, Wind and Fire and noticed the vibration effect of the base rhythm.

In the film we see ripples in a glass of water, caused by the T. rex‛s footsteps. This special effect was achieved by someone plucking guitar strings under the dashboard.

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Can We Hear in Space?

Sound waves need molecules to travel through so, as there are no molecules in space (or very little), there is no sound in space.

Did you know? Thunder is the sound made by lightning? Sound travels in air at a speed of about one mile in five seconds.

If you count the seconds between seeing the lightning and hearing the thunder you can work out the distance from the source of the thunder.

For example, if you count ten seconds between the lightning and the thunder then you can tell the storm is about two miles away.

What is Echolocation?

An echo is made when sound waves you make bounce off a solid object and travel back to your ear. Some mammals use echoes to help to navigate and to find food – this is called echolocation.

Bats use echolocation to fly and hunt at night. They send out high pitched squeaks and clicks almost constantly. These sounds are called ultrasonic, they are too high for humans to hear. A bat can tell from the echoes bouncing back to it, where an object is, its size and shape and whether it is moving or not.

Whales and dolphins use echolocation just like bats, but the ultrasonic sounds they make travel through water instead of air.

Did you know? A bat can detect an object as small as a human hair using echolocation!

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Download our 50 fun outdoor activities checklist for lots of great ideas to enjoy in the fresh air!

3 Fun Sound Experiments to Try at Home

#1. can you feel sound waves.

You Will Need:

What to Do: Blow up the balloon and tie it closed. Turn on the radio to a song with low base music. Hold the balloon between your two hands and hold it very near the speaker of the radio. What can you feel? Change to a different radio station and see if the vibrations change.

What is Happening? The sound coming from the radio makes the air near it vibrate. The air molecules in the balloon are squeezed more tightly together making them vibrate more strongly. We feel these vibrations in our hands.

#2. Can You Make Sound with Bottles?

• two identical bottles

What to Do: Fill one of the bottles two-thirds full with water and the other bottle one-third full. First, blow across the top of each of the bottles – which one makes a higher sound? Next, tap each of the bottles with the spoon – now which one makes the higher sound?

What is Happening? Blowing across the top of the bottles makes the air inside vibrate. The bottle with less air will make the higher sound. When you tap the bottles it is the water that vibrates. The bottle with less water will make the higher sound. Small amounts of air or water vibrate more quickly, making a higher sound.

Next Step: If you want to make this even more fun, you can use a lot of bottles with different amounts of water in each and see how many different sounds you can get!

#3. Can You Watch Sound Waves Travel?

• a small plastic drinking bottle (empty)
• a small piece of plastic (i.e. a plastic bag)
• an elastic band
• a tea-light candle

What to Do: Use the scissors to carefully cut the end off the plastic bottle (ask an adult to do it for you). Stretch the piece of plastic over the open end of the bottle and secure it using the elastic band. Ask an adult to light the tea-light for you, and remove the bottle cap. Hold the narrow end of the bottle near the flame and then tap on the plastic at the other end of the bottle. What happens to the flame?

What is Happening? When you tap the plastic it acts like a drum. The sound waves it creates make the air molecules vibrate. These vibrating molecules then make the molecules beside them vibrate. The vibrations travel through the air in the bottle and blow out the flame.

You can see these sound experiments demonstrated here:

Visit Science Wows for more fun science facts and experiments and follow Dr How on Facebook  and Twitter .

YOU MAY ALSO ENJOY: 18 Easy Science Experiments Perfect for Preschoolers

About the Author: Jill Holtz

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The Science of Waves: Awesome Sound Experiment for Kids

By: Author Jacquie Fisher

Posted on Published: April 16, 2019

Categories Kids Activities & Crafts , Science Experiments

One of the coolest sound wave experiments your kids will ever try!

We love doing simple science experiments and every once in a while, we find a GEM.

It’s a simple, easy and pretty awesome experiment that explores the science of sound waves and how they travel .

Sound Experiment for Kids

So many of the science activities we do are ones that I’ve experienced before but are new to our kids. 

And honestly, as they approach Middle School age, it’s getting harder and harder to impress them 😉

But THIS ONE! 

This is one of those really cool experiments that they thought was super cool and even I was impressed with ( and as my husband will tell you, I’m not easily impressed 😉

I should have titled this “ Make Your Own Gong Using a Spoon and Fork ” — because that’s exactly what you’ll get to do!

Like our How does a Leaf Breathe? experiment , this sound wave project also explores the invisible side of science.

As you begin this vibration experiment, explain to your kids that you are going to test how sound travels. 

They may not realize that when a ‘noise’ is made, it creates sound waves (which are not visible) that travel through the air and to our ears. 

As with any of our experiments, we always start with a good book to help explain the science concepts!

Books about the Science of Sound Waves

Here are a few great books to pair with this activity along with affiliate links so you can easily learn more about each one:

Sounds All Around (Let’s-Read-and-Find-Out Science 1) is part of an amazing science book series that cover all the topics under the sun!  This book explains how sound waves travel, how your ear receives sound and answers for more of the questions kids will ask.

And another fun book, What’s That Sound (Science Solves It! ) has facts & activities related to sound – perfect for kids ages 6 – 10 years old.

Sound Experiments for Kids

You’ll need a few items that I’m sure you can easily find around the house — the affiliate links in our list will give you a quick description of each item:

• A ruler (we found a wooden or heavy plastic ruler worked best)
• Two different size spoons (try using a teaspoon and a serving spoon )
• About 4 feet of string or yarn (this will depend on how tall you are as you can see below)

First, create a loop in the middle of the yarn/string and insert the handle of the spoon. 

Pull tightly so that the spoon hangs in the center of the yarn/string and you have two long pieces of approximately equal length.

Then make a face at your Mom when she asks to take your photo ( this is an optional step, of course ) 🙂

Take each string and wrap them around your pointer finger on each hand. 

Then push the string against each ear (not into the ear but just outside like you are going to plug your ears because you don’t want to hear your Mom ask you to do your chores 🙂 

You’ll want the spoon to hang just below the waist once both ends of the yarn are placed near the ears.

You can see in this photo that you don’t have to use the end of each piece of yarn/string — in fact, as you do the experiment, change how high or low the spoon hangs to see if it changes the sound.

Ok, here’s the big moment …

Once the string in pushed against the ears, have someone GENTLY hit the ruler against the round part of the spoon — and watch the look on your child’s face (priceless!)

Warning : Kids often think that the HARDER they hit the spoon, the louder the sound — be sure to test out this theory too!

If you are using a small spoon, you should hear a distinct bell sound — with a larger spoon, it will sound more like a gong.

Pretty cool!

The Science Behind Sound Wave Experiments

Here’s what’s really happening during the activity — I’ve highlighted some of the science terms that you can introduce to kids when discussing this experiment:

When the ruler hits the spoon, it creates vibrations which make sound waves.  These sound waves travel up the yarn/string and to the ear instead of just spreading out into the air around you.

The yarn acts as a conductor — an object that allows sound waves to travel.

Depending on the size of the spoon and the length of yarn, the sound will appear higher (like a church bell) or deeper (like a gong).

And because the yarn allows the sound waves to continue to travel, the sound of the spoon will resonate or reverberate — meaning they will continue for a while after you have hit the spoon.

Another thing we found was that the only one who can hear the bell or gong sound will be the person with the string near their ears — which we thought was also pretty cool. 

Everyone else in the room will just hear a faint ‘tink’ when the ruler hits the spoon.

More Ideas for Sound Experiments

Ok, we wanted to play around with the experiment a little more — so we also used a serving fork (which is larger than a regular fork).

Do this too and you’ll see that the tines on the fork create a totally different sound.

You can also try different types of yarn/string — you’ll find that the more dense the string, the better the sound will travel.

For more sound wave experiments, try

• the Geeker Speaker Lab Kit which shows you how to make sound waves visible with 5 different experiments!
• the Science of Sound box from Steve Spangler includes up to 10 sound experiments kids can do !

And don’t forget to see all of our simple science experiments!

If you’re looking for more ideas that explore sound waves, try these items:

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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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