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

Here's how you can model the use of X rays for medical examinations with some sand and a piece of screen.

A Scribbling Machine is a motorized contraption that moves in unusual ways and leaves a mark to trace it's path.

Visit an organic egg farm, and see the science behind raising those eggs.

Explore the places, people, tools, and ideas behind the origins of matter, the universe, and life itself.

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

Learn to count like the Maya by studying one of their ancient stone documents.

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

Richter and beyond

Test your memory–and learn how to improve it!

With polarized light, you can make a stained glass window without gla

Grow spikes of crystals in the sun.

Explore the places, people, tools, and ideas behind the origins of matter, the universe, and life itself.

A behind the scenes look at activities and ideas we’re exploring

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

Ever notice how noisy people are?

Most people abhor the sound of their own recorded voice. So what are these recording devices doing to our voices to make them sound so awful?