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

This clay building activity shows that when you make things bigger, weight increases faster than strength.

A naked egg is an egg without a shell. Using vinegar, you can dissolve the eggshell without breaking the membrane that contains the egg.

This new version of an old game will bend your brain.

Learn how some vibrant seniors exercise their minds, and find out what you can do to help your own memory.

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

Learn about scale and structure with eight great activities designed for the elementary classroom.

Explore the science behind food and cooking with recipes, activities, and archived Webcasts.

Explore the ancient knowledge of the Maya, who built sophisticated monuments to the sun.

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

See the tiny disk of Mercury slowly travel across the face of the sun in this rare event.

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

Seasoned gardeners depend on a community of bacteria, worms, and insects to get the most out of their plantings. Find out why.

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

Activities and History

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.

Pickling is the art of manipulating the microbial garden in foods.

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

Summertime in the Arctic is for the birds

Professional development resources for teacher educators.

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

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

Explore the ideas behind Science of Sharing with these Activities.

Enjoy the early memories of some of the visitors to this website.

What do you really know about what you see?

Do hot water and cold water mix?

The Science of Hockey takes you inside the sport and explains the science behind the world's fastest game. The site contains RealVideo interviews with scientists and NHL players and coaches.

Remote sensing allows geologists to peek under the ice – and find a big surprise.

What's really going on when you bake? Find out.

Make an observatory to see the amazing colors in bubbles!

Spin the bottle to see beautiful swirling shapes

Explore new social science exhibits at San Francisco’s Civic Center.

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

Listen to the story of Ladle Rat Rotten Hut.

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

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

Explore the surprising side of sound

A collection of auditory illusions found in indigenous folk practices, popular music, and scientific research.

Identify misalignments in your body by looking at your feet.

Find out about bicycle brakes and balance, and calculate your stopping distance on a bicycle.

Bring movie, TV, and cartoon images to life.

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

Amino acids and corn syrup combine to create new aromas.

Tinker with electricity using common objects: batteries, lights, buzzers, motors, switches, etc.

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

The fact and fiction behind some bizarre gardening remedies.

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

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

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.

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

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

Exploring the diversity, distribution, and abundance of life in the oceans

Grow spikes of crystals in the sun.