After you've completed this experiment, you can try making your own sound-to-light transformer as shown below. Using the properties of sound waves, we'll be able to actually see sound waves when we aim a flashlight at a drum head and pick up the waves on a nearby wall.
Here's what you need:
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- empty soup can
- balloon
- small mirror
- tape
- scissors
- hot glue gun
- laser or flashlight
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Advanced students: Download your Seeing Sound Waves using Light