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

With polarized light, you can make a stained glass window without gla

Learn about origami, make your own paper, and find out the best way to fold a paper airplane.

Search a geological map of Ethiopia for fossils.

Meteor, meteorite, meteoroid – what's the difference?

Explore our app and measure the time of your life.

The three most densely populated cities on the planet where seismologists expect major earthquakes are San Francisco, Tokyo, and Istanbul. Find out why the effects in each city will be very different.

What geometric shapes can you find on the playground?

Sometimes we can learn about outer space when space objects come to us.

Everything you ever wanted to know about bubbles, but were afraid to ask.

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

Share some secret sounds with a friend.

Meet the competitors and their humongous pumpkins at Half Moon Bay's Great Pumpkin Festival.

Tour a hydroponic greenhouse in frozen Antarctica.

Why is the bicycle the most efficient way to travel? Explore bicycle science and culture.

Watch Venus travel in front of the sun. 

The 1906 earthquake jolted geologists into focusing on how and why faults break loose.

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.

Tiny shrimplike crustaceans, krill play a critical roll in many marine food webs, even feeding huge baleen whales.

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

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

Find out what's inside a floppy disk.

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

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

Grow spikes of crystals in the sun.

What's at fault?

Sperimenta interattivamente l'illusione del muro del caffé.

This stuff can't make up its mind -- is it a liquid or a solid?

Use the Science Journal mobile app to investigate movement.

Meet a kinetic sculptor.

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

Join us as we investigate the sweet world of sugar.

I movimenti dei tuoi occhi faranno brillare questo disegno.

Explore the important engineering concepts of yield strength, ultimate strength, and elasticity as they relate to building a better bicycle.

Listen to the sound of a rainstorm – anytime, anywhere.

Journey into Chaco Canyon, where ancient people built monuments to the cosmos. Journey to Chichén Itzá, where the Maya built monuments to the sun.