Some Fun Science Experiments for Kids
When it comes to science experiments, some of the most enjoyable involves the science of sound. If you’re looking to dazzle your little learner with exciting new experiments, look no further than learning from these simple sound science experiments that use everyday household items to bring sound to life.
Let’s Explore Some Riveting Ideas for Science Experiments
- Make Music with a Straw Pan Flute
Perfect for younger children, the subsequent 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.
- At least 9 or 10 straws, more if desired!
- Clear gift wrap tape
What to Do:
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 explore further how length alters the pitch.
2. Listen to Sounds Travel Underwater
Sound travels well through the 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
- Sizeable plastic water or soda bottle
- At least two kitchen knives
- Scissors or a sharp knife to cut the bottle
What to Do:
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 their 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 listens. 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 underwater animals can hear sound. Discuss the results with your child to teach them more about the conduction of sound waves through water.
3. See the Sound
Sound vibrations travel through the air, water, and even solid objects, but it’s impossible to see the waves. What if we could see the ripples in another way? This science of sound experiment makes the 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 excellent, or make sugar crystals in another science experiment!
What to Do:
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 their breath making the crystals jump and move, but it’s the sound vibrations. Try different sounds besides ordinary speech and see how the crystals come to life!
4. Make a Stick Harmonica
Making musical instruments is 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.
- Two large craft sticks
- One wide rubber band
- Two smaller rubber bands
- One plastic drinking straw
What to Do:
1. Using the scissors, cut the straw into two one-inch pieces and set them aside.
2. Take the wide rubber band, stretch it lengthwise 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 tiny rubber bands.
4. Finally, take the last piece of straw, 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 centre 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 centre of the harmonica, the higher the pitch will be due to the shortened length of the band!
5.Experimenting with Sound Waves
It might be hard to imagine that sound waves can travel through solid objects and the air. This exciting but straightforward 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
What to Do:
1. Stretch out the string and tie the spoon’s handle in the middle of the string.
2. Take one end of the string and tie it 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 their fingers, with the string wrapped around each, into their ears.
4. Help your child lean over, so the spoon dangles and help them 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 bell-like sounds travel up the string from the spoon and into their ears. Please discuss with your child how the sound waves created from the scoop hitting the door move through the line until they can hear it!
Science is fascinating for anybody who values knowledge and there are many ideas you can try out; because it is a body of knowledge and a method to acquire more knowledge, and science experiments are even more fun. We hope you try these experiments with your child and enjoy them!