Snacks from A-Z

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A Little Atmosphere

Use a little bit of math to make a bonus accessory for your globe of the earth—an atmosphere, to scale.

Afterimage

After looking at something bright, such as a lamp or a camera flash, you may continue to see an image of that object when you look away. This lingering visual impression is called an afterimage.

Agar Cell Diffusion

Use cubes of agar to model how diffusion occurs in cells. By observing cubes of different sizes, you can discover why larger cells might need extra help to transport materials.

Aluminum-Air Battery

Use aluminum foil, salt water, and activated charcoal to construct a simple battery strong enough to power a small motor or light.

Ambiguous Cube

“Ambiguous” objects provide visual input that your brain can interpret in more than one way. With this Snack, you can make an ambiguous three-dimensional cube from drinking straws.

Anti-Gravity Mirror

A reflection of your right side can appear to be your left side. Try this activity and you'll appear to perform many gravity-defying stunts.

Anti-Sound Spring

In this simple exploration, a coiled phone cord slows the motion of a wave so you can see how a single pulse travels and what happens when two traveling wave pulses meet in the middle.

Avalanche

What starts out as a cascade of well-mixed granular materials sorts itself into alternating layers of salt and sand.

Backyard Bug Bonanza

You may think that hunting for insects requires a trip to the Amazon, but they’re everywhere on our planet. Where do you think you’ll find the greatest diversity of insects in your neighborhood?

Bacteria Culture Club

Yogurt is the byproduct of hungry bacteria that digest the lactose in milk. You can make more yogurt just by feeding the bacteria more milk.

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The Exploratorium, established in 1969, is an internationally renowned museum of art, science, and human perception located in San Francisco, California. Its hundreds of hands-on exhibits are designed to promote science discovery.

The Exploratorium Teacher Institute has supported middle and high school math and science teachers to incorporate hands-on, inquiry-rich experiences into their classrooms since 1984.

Cook up over 100 hands-on science exhibits from everyday materials!
Buy the Exploratorium Science Snackbook.