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Send waves down a spring to watch them travel and interact.
This simple toy sounds like a swarm of bees.
Build a cuíca—a musical instrument—and play with vibrations.
A balloon acts as a lens to focus sound.
Make a speaker that turns changing electric current into sound.
The Doppler effect causes the “neeeeeoowwm” sound of cars.
Listen to the rhythm of falling weights.
Make a record player with a pencil, pin, and paper.
Wrap a string around your head and pluck to play music.
Listen to the sound of rain falling—anytime, anywhere.
Hear the magnet!
Listen to a beam of light.
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