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

Do hot water and cold water mix?

Make a fantastic toy that shimmers when you shake it.

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

Find out how proteins make muscles work in this original Exploratorium poster, illustrated by David Goodsell.

Not all bubbles are made with soap!

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

Create your own fish mummy using common baking soda!

An introduction to the concepts and theories that contribute to contemporary complexity research.

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

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

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

Imagine yourself in the middle of the vast Pacific Ocean. You've been sailing for weeks, and there's no land in sight. Do you know where you are? Do you know which way to go?

Make a tool that lets you measure how tall a building is or how high a rocket flies.

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

Four downloadable workshop guides for teaching introductory genetics in a museum or other informal education setting.

Learn how eyes work, and watch a cow's eye dissection. Then follow step-by-step instructions to do a cow's eye dissection yourself.

Ever notice how noisy people are?

Bone conduction is another pathway to listening.

Did you know the Maya used two calendars? How did they know when to plan their big New Year's parties?

Where do all the different languages in the world come from?

Professional development resources for teacher educators.

What do you really know about what you see?

What happens to meat when you cook it?

How has imagery changed the way we look at our bodies—over time and in different cultures?

How do you stop and steer a bicycle? What forces keep the bicycle from falling over?

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

You can make sentences without words!

Demonstrations of electric Robo-Cars made by 22 Science Summer students.

A model for heart development

Los movimientos del ojo hacen parecer que el dise�o brilla.

Make a fantastic toy that shimmers when you shake it.

Amino acids and corn syrup combine to create new aromas.

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

Want to understand how to predict when the good waves are coming to your shore? It helps to start with the basics behind the formation of ocean waves.

The Maya were expert sky-watchers, careful observers of the motions of the celestial bodies...

From 1977 until 2003, the Exploratorium published a quarterly magazine. The Exploratorium Magazine Online is a companion to selected issues of the print magazine, providing key articles and activities and including multimedia features.

Take a peek at the colorful world of plant sex.

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

Scientists dig under the surface for clues to past climate

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

Watch Venus travel in front of the sun. 

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

Watch tiny blue, green, and white molds grow on leftover food.

Commemorate the 1906 quake! Rummage through live earthquake data, subductive science, and more. Learn about earthquakes in Faultline: Seismic Science at the Epicenter

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

Make a simple rocket and a rocket launcher, and watch a demonstration of how the finished rocket will fly.