Explore, Play, Discover: Websites, Activities, and More

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Discover the uncommon stories behind the most common fruits and vegetables.

Seasoned gardeners depend on a community of bacteria, worms, and insects to get the most out of their plantings. Find out why.

Learn how eyes work, and watch a cow's eye dissection. Then follow step-by-step instructions to do a cow's eye dissection yourself.

Visit Las Cuevas Research Station in Belize and the Natural History Museum in London to learn about the study of biodiversity.

The Science Information Infrastructure (SII) is a collaboration among teachers and scientists. The SII at the Exploratorium is developing educational resources using NASA images and datasets.

Find the answers to common Sport! Science questions.

Turn your phone into a pocket science laboratory with tools to measure light, motion, sound, and more.

Use this handy conversion calculator to convert between the many units found in recipes.

How are creative investigations sparked? What does a state of inspiration feel like? Can inspiration be transmitted from person to person? Join us for an audio slideshow series that explores the fascinating world of how we work creatively.

Spin the bottle to see beautiful swirling shapes

How do scientists establish the age of artifacts, rocks, and settlements?

Zoom into a fossil chimp tooth.

Join the Exploratorium on the playa in Black Rock Desert and explore the science of pyrotechnics, flight, dust devils, rainbows, and more.

The common ground between pickles, cheese, bread, wine, and many other foods.

Grow spikes of crystals in the sun.

Get a behind-the-scenes look at activities and ideas we’re exploring.

Staff member Vivian Altmann presents the "Snack" Water-Bottle Membranophone." Make some noise with simple materials.

Exploring the diversity, distribution, and abundance of life in the oceans

Explore the surrounding sounds that everyday objects make. Build a noise contraption from these objects, then add a PicoCricket to automate your contraption. Finally, add a light sensor and program your sound automata to "play" when triggered by light.

What happens to sandy or fine-grained soils when an earthquake shakes them up? Try this simple activity to find out.

In this activity, you'll learn about "tempering" -- a delicate process of melting and cooling chocolate.

Geometry Playground will change the way you think about geometry. This exhibition engages your hands, brain, and body in playful investigations of this most visible branch of math.

Humpbacks, minkes, and orcas are often sighted in the nutrient-rich Antarctic waters.

Explore the mysterious interactions between light and geography through the eyes and works of artists Charles Ross and James Turrell.

Learn about common techniques for peering inside the body in order to diagnose disease and injury.

The more astronomy changes, the more it stays the same. This series of images juxtaposes ancient and modern study of the celestial bodies.

Can you trust your own memory? Find out with this activity.

Learn how some vibrant seniors exercise their minds, and find out what you can do to help your own memory.

Find out about bicycle brakes and balance, and calculate your stopping distance on a bicycle.

Find out how proteins make muscles work in this original Exploratorium poster, illustrated by David Goodsell.

Why is baseball so popular in Japan?

See how TV screens create images from many tiny colored dots of light.

From 1977 until 2003, the Exploratorium published a quarterly magazine. The Exploratorium Magazine Online is a companion to selected issues of the print magazine, providing key articles and activities and including multimedia features.

Learn how living things get energy from dead ones in this interactive exhibit.

Why do wintergreen LifeSavers spark in the dark?

Gather and compare real data about sunspots and solar x-ray activity.

Meet David Goodsell, a molecular biologist and artist who finds beauty in the molecules of cells.

Students become Internet researchers and learn about NASA satellites.

Your worn shoe soles reveal whether your feet roll excessively from side to side as you walk.

You can make a light painting with a light source, a darkened room, and a digital camera.