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

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

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

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

A model for heart development

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

Watch old pennies turn bright and shiny right before your eyes!

Watch Venus travel in front of the Sun. 

Activités pour la classe élémentaire.

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

Ever notice how noisy people are?

It's easy to fold a sheet of paper in half. But can you fold a sheet of paper in half ten times?

Spin the bottle to see beautiful swirling shapes

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

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

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

Decorate your desktop with some of the most intriguing pattern and perception images from the Exploratorium.

Discover the uncommon stories behind the most common fruits and vegetables.

Check out top mountain biker, Ruthie Matthes. Learn about frames and materials from a custom bike maker. Try interactive javascripts that calculate braking distances and energy consumption.

Produce some pretty mixed-up music with this online interactive.

White-coated Arctic icons, these supreme hunters are under threat

By passing the winter frozen as solid as a holiday fruit cake, the wood frog breaks all rules. Scientists hoping to preserve human organs are paying close attention.

Most paper airplanes are flat, but these paper hoops can really fly!

Make a spinning disc called a stroboscope, which lets you create your own animated cartoon.

Watch old pennies turn bright and shiny right before your eyes!

Use live data to make your own wave predictions, wherever you are.

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

The Science Information Infrastructure (SII) is a collaboration among teachers and scientists. The SII at the Exploratorium is developing educational resources using NASA images and datasets.

On March 29, 2006, a total solar eclipse occurred when the new moon moved directly between the sun and the earth. The moon’s shadow fell on the eastern tip of Brazil, sped eastward across the Atlantic, through northern Africa, across the Mediterranean, an

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

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

Learn about the search for life elsewhere in the universe.

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

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

Find links relevant to research at the poles.

Visit the Outdoor Exploratorium at Fort Mason to explore the science behind wind, waves, and more.

Explore the Traits of Life exhibition space using this 360˚ panorama.

Your CRT screen may appear to wiggle when you give it the raspberry, but the only thing wiggling is you.

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

Build a simple motorized toy made of a recycled CD and a DC motor.

Teeth are the most common fossils found. What can they tell us?

Zoom into a fossil chimp tooth.

High energy prices got you down? Discover how pickles can ease your troubles.

Explore mechanical elements such as cams, levers, and linkages to create your own moving sculpture.

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

Launch a rocket with a plastic pop bottle and use Height Site to figure out how high it flies.

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

Make an observatory to see the amazing colors in bubbles!

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

Sometimes things are not as they appear.

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