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

Measure your reaction time with just a meter stick and some help from a friend.

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

With a lens, you can bend light to make pictures of the world.

What can you do with a frozen water balloon? Plenty!

Nobel Laureate Symposium

A model for heart development

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

What does it take to block gamma radiation?

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

Learn about the inner workings of a cell through this interactive exhibit.

Learn how to tie the six knots most useful on a voyaging canoe.

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

Explore our 2000 guide to the solar max, the period in the solar cycle during which the number of sunspots is greatest.

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.

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

Use live data to make your own wave predictions, wherever you are.

Make your own refracting telescope from a pair of reading glasses.

Explore our media collection

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

Explore the surprising side of sound

Can you cover your kitchen tracks?

Are there meat by-products in makeup? Can you guess where you might find them?

Why is baseball so popular in Japan?

What are the best materials for frames? What are the best designs?

A multifaceted exhibition that explored genetics and the Human Genome Project from a variety of perspectives from April 8 to September 4, 1995.

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

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.

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

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

How many objects can you follow at once?

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

fat, proteins, collagen, and more

How many pennies will your bridge hold?

Examine words from different languages and determine which two languages are the most closely related.

anatomy of a skateboard, skateboard tricks, types of skateboarding, physics glossary.

A model for heart development

Turn your phone into a pocket science laboratory with tools to measure light, motion, sound, and more.

Grow marshmallows to monstrous proportions!

Join us as we crunch our way through everything from our San Francisco sourdough to Injera and Pugliese.

In this activity, students make bridges using an oil-based modeling clay (plasticene).

Imaginative Designs in Digital and Analog Clothing