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

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

A naked egg is an egg without a shell. Using vinegar, you can dissolve the eggshell without breaking the membrane that contains the egg.

Watch Venus travel in front of the sun. 

What happens to meat when you cook it?

Explore our app and measure the time of your life.

Find out why biodiversity benefits plants and people alike.

Make a photographic image without a camera!

Create your own fish mummy using common baking soda!

Take an animated tour of Antarctica's variety of ice formations, which give it a beauty unrivaled anywhere on Earth.

Will the "real" South Pole please stand up?

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

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

White-coated Arctic icons, these supreme hunters are under threat

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

Your guide to the Northern and Southern Lights (also in 'Observatory')

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

See the tiny disk of Mercury slowly travel across the face of the sun in this rare event.

Learn about the most important piece of equipment-- your feet!

Explore our media collection

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

Scratch Film, also known as Direct Animation, is the process of drawing and scratching designs directly onto film.

An ordinary metal spoon can make some astounding sounds!

Each webcast, the Exploratorium staff and teachers demonstrate their science projects and compete for the title of IRON SCIENCE TEACHER!

Download a PDF file with step-by-step instructions for doing your own cow's eye dissection.

Bring movie, TV, and cartoon images to life.

Get down and dirty with the surprising science of soil.

Looking at the night sky can help you see how your eyes and brain make sense out of moonlight.

A Scribbling Machine is a motorized contraption that moves in unusual ways and leaves a mark to trace it's path.

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.

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

Vsit a quirky kitchen where you can compose music with ordinary (and not-so-ordinary) objects.

We can't predict when an earthquake will occur, but we can avoid some potential disasters.

Artist Bob Miller's Light Walk at the Exploratorium will change the way you look at light, shadow, and images.

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

Explore the ideas behind Science of Sharing with these Activities.

Sometimes things are not as they appear.

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

Ever wonder what you might weigh on Mars or the moon? Here's your chance to find out.

Explore new social science exhibits at San Francisco’s Civic Center.

Learn how sparkling wine is made, what makes it different from still wine, and where all those little bubbles come from!

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

Learn how Hubble Telescope scientists put together those lovely pictures.

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