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

Here's how you can model the use of X rays for medical examinations with some sand and a piece of screen.

Downloadable media about earthquake science.

Learn about the search for life elsewhere in the universe.

Using a spectroscope, you may see that what appears to be a single color of light is really a combination of colors called a spectrum.

The Instruments Aboard the Mars Exploration Rover

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

Learn how you too can enjoy our activities in your kitchen, garage, classroom, and community.

What happens to meat when you cook it?

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

Can you tell the difference between human and nonhuman embryos?

Build a simple motorized toy made of a recycled CD and a DC motor.

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

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

Follow our crew as they visit the Dry Valleys and hike the slopes of volcanic Mt. Erebus.

Peter Whitehead is an instrument builder, performer, and composer.

Meet a kinetic sculptor.

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

Rube Goldberg-inspired cause and effect contraptions using everyday materials and found objects.

Find out what's inside a floppy disk.

the Fudge House on Fisherman's Wharf in San Francisco!

Scientific knowledge and a few chemical concoctions can get you through a Bad Hair Day.

Use live data to check the weather in space, and learn how it can affect us here on earth.

An ordinary metal spoon can make some astounding sounds!

What's really going on when you bake? Find out.

Build a tool that lets you do estimates using your own feet.

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

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

Students become Internet researchers and learn about NASA satellites.

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

Watch Venus travel in front of the sun. 

Professional development resources for teacher educators.

Listen to the story of Ladle Rat Rotten Hut.

Explore the science of baseball, skateboarding, surfing, hockey and cycling.

Show yourself how a pinch of salt can take the bitter taste away.

Read stories and see footage from the 1989 Loma Prieta earthquake.

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