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

Learn how changes in genes over generations created the modern goldfish.

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

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

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

Do hot water and cold water mix?

Explore an interactive map.

Can your eyes fool your nose? Find out with this experiment.

A model for heart development

What happens to a cylinder when you scale it up?

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.

The common ground between pickles, cheese, bread, wine, and many other foods.

Saving seeds helps preserve the culture of Native American farmers in the American Southwest and northern Mexico.

Everyone seems to love the sound of their own voice in the shower. That's because a simple shower stall produces some complex sound-altering effects.

Learn how Hubble Telescope scientists put together those lovely pictures.

Test your memory–and learn how to improve it!

Art/science teams explore the underlying systems that give the San Francisco Bay Area its unique character.

Can you cover your kitchen tracks?

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

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

Scientists dig under the surface for clues to past climate

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

Learn how to bridge the digital generation gap

Put on a mask and see how we communicate with our bodies as well as with our faces and words.

Listen in on conversations with Laurie Anderson, Brian Eno, and others in Speaking of Music Rewind.

Join us as we investigate the sweet world of sugar.

Discover how researchers study climate change and examine the latest scientific data.

Your guide to the Northern and Southern Lights (also in 'Observatory')

Listen to the sound of a rainstorm – anytime, anywhere.

Activities and History

San Francisco was born in gold dust, and nearly died in rubble and ashes.

Download a PDF file with step-by-step instructions for doing your own cow's eye dissection.

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

Make a fantastic toy that shimmers when you shake it.

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

What can you build with 50 straws and 50 pins?