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

Design and build a musical instrument that responds to changing light.

Do hot water and cold water mix?

Grow spikes of crystals in the sun.

The brightest buds get all the glory – but they're not just for show.

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

Hear vocal tract models transform the squawk of a duck call into vowel sounds.

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

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

Do hot water and cold water mix?

A downloadable series of graphics from our Faultline website gives a snapshot of seismic science.

There are about 500 dispatches from scientists working in the Arctic and Antarctica, along with original videos, photos, webcasts, and articles.

Your thumb and index finger can help you test a steak's degree of doneness.

Will the "real" South Pole please stand up?

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.

Want to see where the biggest quakes have been this week? Follow a few of the links below to see what's shaking in your neighborhood and around the world.

The lure of Terra Australis Incognita begins with the Ancient Greeks and ends with modern cruise ships.

What does it take to block gamma radiation?

Activities and History

fat, proteins, collagen, and more

Complete an electrical circuit with your body and explore ways to control the flow of electricity.

Explore the process of extracting DNA from Neanderthal bones.

Use dominoes to model a nerve cell's transmission of a signal

Crabeaters have extraordinary teeth, Weddells are downright cute, and leopards are as fierce as their namesake

See living stem cells and find out why they are the "stem" from which all other cells develop.

The lure of Terra Australis Incognita begins with the Ancient Greeks and ends with modern cruise ships.

Downloadable media about earthquake science.

Explore the deadly beautiful world of carnivorous plants.

fat, proteins, collagen, and more

A fish-eye view of the brain

Stories about science, art, and human perception—from 1998. 

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

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.

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

Why is your shadow longer in winter than in summer? Grab a basketball and some paperclips and find out!

See if you can put these sounds back together in this sonic jigsaw puzzle.

Think you have a lot in common with a kiwi fruit? Genetically speaking, you do.

You may be surprised at the results of this "wimpy" workout.

Who lives in the Arctic, and how did they get there?

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