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

Nobel Laureate Symposium

Learn about the body's vital defense force.

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

Most people abhor the sound of their own recorded voice. So what are these recording devices doing to our voices to make them sound so awful?

Grow marshmallows to monstrous proportions!

The fruit flies in this exhibit show just a few of the mutations that occur in natural fruit fly populations.

Make a simple rocket and a rocket launcher, and watch a demonstration of how the finished rocket will fly.

Get a taste of how the earth's plates move.

Pickling is the art of manipulating the microbial garden in foods.

Watch tiny blue, green, and white molds grow on leftover food.

Watch ancient text revealed and read for the first time in a thousand years!

Why do road bikes have thin tires, while mountain bikes have fat tires?

Professional development resources for teacher educators.

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

From May 20 to June 5 1997, we presented a webcast series exploring the art and science of severe storm visualization.

Imagine yourself in the middle of the vast Pacific Ocean. You've been sailing for weeks, and there's no land in sight. Do you know where you are? Do you know which way to go?

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

These unique – and uniquely beautiful – seal species spend their lives amid the sea ice

The majority of Barrow residents are indigenous people who live both traditional and modern lives

What is a gear ratio? And how do gears help make the bicycle so efficient?

A collection of auditory illusions found in indigenous folk practices, popular music, and scientific research.

The only continent without any countries or government . . .

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

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

Recycle some cans to make after-dinner music!

You can make sentences without words!

Realtime data, more about earthquake dynamics, and loads of other information.

Learn about bike gears using thread spools and a rubber band.

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.

Make your own miniature "Lava Lite."

Interact with the Cafe Wall Illusion.

Why do road bikes have thin tires, while mountain bikes have fat tires?

Recycle some cans to make after-dinner music!

Close your eyes and listen to tell where the paddle is when you play this all-listening version of the classic game Pong.

The Antarctic food web is the simplest on the planet, and krill are at its hub.

Use printable images from our time-lapse movies to make flipbooks–handheld animations that you can make at home.

Explore our media collection

A brief introduction to the land of the midnight sun.

Learn how Hubble Telescope scientists put together those lovely pictures.

Can you cover your kitchen tracks?

Find out why biodiversity benefits plants and people alike.

What goes on under the ground during an earthquake? Use a Slinky to model the various seismic waves that make the earth tremble.