Use a Balloon to Amplify Sound
Small sounds can still make a big noise when you use a good sound conductor. Experiment with a balloon, compressed air and your own ears to find out how it works and the science behind it.
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What you'll need:
Instructions:
What's happening?
Despite you only tapping lightly on the balloon your ears can hear the noise loudly. When you blew up the balloon you forced the air molecules inside the balloon closer to each other. Because the air molecules inside the balloon are closer together, they become a better conductor of sound waves than the ordinary air around you.
Link: balloonspeakers
Today we did an experiment on a balloon and we blowed it up then we put it on people's ears then we taped it on the other side then tried to make a beat.
I was very fun because we learnt lots of new things.
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1 comments:
Hi Alfred, I found it really interesting to learn that balloons can amplify sound! Do you think you will share this experiment the next time you are at a birthday party or blow up a balloon?
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