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

You can make sentences without words!

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

Learn about the body's vital defense force.

A model for heart development

Living along the continental coastline of Antarctica are the emperors and the Adélies.

Make it grow . . . bigger, lusher, juicier.

High energy prices got you down? Discover how pickles can ease your troubles.

Four times over 100-plus years, major initiatives have brought together scientists from around the globe to collaboratively study the poles.

In September 2004, the Exploratorium covered a conference in the Galapagos Islands, organized by the National Center for Atmospheric Research, that considered the implications of El Niño forecasting.

Try your hand at explaining symbols both modern and ancient, and then make your own.

Explore mechanical elements such as cams, levers, and linkages to create your own moving sculpture.

Listen to bird songs and try to figure out which are songs, which are companion calls, and which are alarms.

Recycle some cans to make after-dinner music!

The 18,000-foot Mt. Parinacota presents some fitness challenges for climbers.

For most of us, science arrives in our lives packaged neatly as fact. But how did it get that way?

Make yourself giant or tiny with a snip of the scissors.

Find out why wind resistance is a big drag for bicyclists, and use our calculator to estimate drag for yourself.

Far north in the night sky, a faint glow appears on the horizon. Green and red flames of light stretch across the sky.

Teeth are the most common fossils found. What can they tell us?

Get up close and personal with a sucrose molecule.

Music, fear, sadness all can cause goosebumps. But why?

Does the sun rise in the east? Not exactly.

Explore our media collection

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

Build a bridge from a piece of paper and explore ways of making it stronger.

Find out how a cochlear implant helped one man regain the ability to listen.

Check out ColorFest, a two-month extravaganza celebrating color at the museum from July 1 to September 5.

On March 29, 2006, a total solar eclipse occurred when the new moon moved directly between the sun and the earth. The moon’s shadow fell on the eastern tip of Brazil, sped eastward across the Atlantic, through northern Africa, across the Mediterranean, an

Learn about the giants of the polar seas.

Sit down for compost tea with a visionary cultivator.

Discover the secret colors hidden in black ink. With a paper towel, a black marker, and a cup of water, create a rainbow of colors while exploring capillary action and chromatography.

View the full eclipse visible from China in 2008.

What kinds of candy are made and enjoyed in where you live?

Want to understand how to predict when the good waves are coming to your shore? It helps to start with the basics behind the formation of ocean waves.

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

Using baking soda and vinegar, you can pop a plastic bag with the power of fizz.

Richter and beyond

Not all bubbles are made with soap!

What does it take to block gamma radiation?

About Anaglyphs. How do I make 3-D glasses?

Darkening polar skies often bring beautiful light displays.

See a map of recent earthquakes in the United States, and learn why earthquakes happen so frequently on the West Coast.

Make a scale model of the Solar System and learn the REAL definition of "space."

Find out why biodiversity benefits plants and people alike.

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