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

Use your naked egg to experiment with osmosis, the movement of water across a membrane.

Leonardo's famous painting is used in an interesting perceptual experiment.

In 2009, the ECHO (Education through Cultural and Historical Organizations) Partners hosted a national symposium held at the Exploratorium to discuss the effects of climate change on the planet. You can watch archived webcasts of the symposium.

Before there were clocks, people used shadows to tell time!

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

Learn about the giants of the polar seas.

What's in that cup of coffee anyway? Find out about the history and chemistry of coffee.

Interact with the Cafe Wall Illusion.

Hear audio clips of the ambient sounds of the rain forest at night near Arecibo, Puerto Rico.

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

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

Find out why biodiversity benefits plants and people alike.

Experiment with water, temperature, and light to see what makes a seed come out of its shell.

Play a memory concentration game: Listen closely then match pairs of sounds.

I movimenti dei tuoi occhi faranno brillare questo disegno.

The Physics of Skateboarding Tricks

What's the science behind a home run? Why do curveballs curve? Learn about the game from players from the S.F. Giants & Oakland A's.

Learn about the giants of the polar seas.

Have you ever wondered what makes blue cheese blue, or why some cheeses are hard and others soft?

One man's journey into blindness

In Observance of the 50th Anniversary of the bombing of Hiroshima and Nagasaki.

Get down and dirty with the surprising science of soil.

In the 1870s, an American woman could not vote. She could not own property in her own name after marriage. But she could play ball. . .

With just mud, paper and an egg, you can grow colonies of multi-hued microbes!

Explore the deadly beautiful world of carnivorous plants.

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

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

Get a taste of how the earth's plates move.

Explore the unknown world inside your brain with these fun activities.

Make a fantastic toy that shimmers when you shake it.

Search a geological map of Ethiopia for fossils.

How can something as light as air slow down a hit?

The Exploratorium is taking it outside to explore natural and human-made phenomena in and around San Francisco. Look for new episodes twice each month.

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