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In this activity, learners try to float ink on the surface of water to create a pattern and then capture it with absorbent paper.

Sound changes pitch relative to how you or the source of the sound is moving. Use this simple activity developed by the Exploratorium to experience the Doppler Effect yourself!

Did you know that using a lens one can bend light to make pictures of the world? It's true!

In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.

Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.

With little more than a flashlight, a straw, and a plastic lid, make an observatory so you can see the amazing colors in bubbles.

How far can you see out of the corner of your eye? Grab a partner and find out from the Exploratorium Science Snack.

Do you have an extra portable cassette tape player hanging around?

In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.