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.
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I learnt that you can make music with anything you see in the world.
By Chris
1 comments:
Hi Chris, this sounds like a lot of fun! Were you surprised that the balloon could do this? You could share this experiment the next time you blow up a balloon!
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