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

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

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

Can a gum wrapper have a story? Discover just how important and meaningful an object can be.

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

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

In Observance of the 50th Anniversary of the bombing of Hiroshima and Nagasaki.

Make an observatory to see the amazing colors in bubbles!

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

Do hot water and cold water mix?

Use this handy conversion calculator to convert between the many units found in recipes.

Join us as we investigate the sweet world of sugar.

Bone conduction is another pathway to listening.

Explore cantilevers and other structures by building with skewers.

The Antarctic food web is the simplest on the planet, and krill are at its hub.

Learn how living things get energy from dead ones in this interactive exhibit.

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

Explore the elements of a scientific paper.

Watch Venus travel in front of the Sun. 

Where is the Center of the Universe? Here, there, and everywhere.

Play a memory concentration game: Listen closely then match pairs of sounds.

Playing games is a great way to exercise your brain. Even a simple game like Tic-Tac-Toe can teach you about strategy.

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

Find out why biodiversity benefits plants and people alike.

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

Learn about bike gears using thread spools and a rubber band.

The nearly ice-free Dry Valleys are an Antarctic anomaly, and Earth's closest equivalent to Mars.

Explore the surrounding sounds that everyday objects make. Build a noise contraption from these objects, then add a PicoCricket to automate your contraption. Finally, add a light sensor and program your sound automata to "play" when triggered by light.

Walk in the shoes of Dean Hudson. As a visually impaired person, Dean depends on audio clues to navigate through the world.

Three auditory illusions created by students from the Center for Electronic Art.

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

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

Tour the Breads of the World

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

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

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

Activities and workshops for playful invention, investigation, and collaboration

Build a mirrored tube that lets you see around corners and over walls.

Explore the surrounding sounds that everyday objects make. Build a noise contraption from these objects, then add a PicoCricket to automate your contraption. Finally, add a light sensor and program your sound automata to "play" when triggered by light.

Could your own brain betray you?

Make very, very, very tiny lightning, anytime you want!

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

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?