Strips of plastic on a globe model our atmosphere.

A flash of light leaves a lingering image.

Construct a simple battery that can power a light.

Without depth perception, random lines can become a chair!

Find order in well-mixed chaos.

Get outside and discover the diversity of insect life in your neighborhood.

Discover the meaning of evolutionary fitness in this predator/prey simulation.

A bicycle wheel acts like a giant gyroscope.

Polarized light reveals stress patterns in clear plastic.

Build a rubber-band-powered rolling plastic water bottle.