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Subject: Sound

Science activity that explores how waves travel and interact
Anti-Sound Spring

Send waves down a spring to watch them travel and interact.

Arpa de cabeza

Envuelve una cuerda alrededor de tu cabeza y púlsala para hacer música.

Science activity to create a toy that sounds like a swarm of buzzing bees
Bee Hummer

This simple toy sounds like a swarm of bees.

Science activity to build a musical instrument that uses vibrations
Coffee-Can Cuíca

Build a cuíca—a musical instrument—and play with vibrations.

Science activity that demonstrates the effect of air density on sound
Conversation Piece

A balloon acts as a lens to focus sound.

Science activity that uses a coil of wire, a paper cup and a magnet to create a radio speaker
Cup Speaker

Make a speaker that turns changing electric current into sound.

Science activity that demonstrates the Doppler effect
Doppler Effect

The Doppler effect causes the “neeeeeoowwm” sound of cars.

Science activity creating music with gravity
Falling Rhythm

Listen to the rhythm of falling weights.

Science and engineering activity to make a record player
Groovy Sounds

Make a record player with a pencil, pin, and paper.

Science activity to play music by wrapping a string around your head
Head Harp

Wrap a string around your head and pluck to play music.

Science activity to make an instrument that creates the sound of rain falling
Make Your Own Rainstick

Listen to the sound of rain falling—anytime, anywhere.

Science activity that demonstrates magnetic field coupling
Modulated Coil

Hear the magnet!

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Attribution: Exploratorium Teacher Institute