Physics

Find out why balls bounce--or fail to bounce.

How do you stop and steer a bicycle? What forces keep the bicycle from falling over?

A Marble Machine is a creative ball-run contraption, made from familiar materials, designed to send a rolling marble through tubes and funnels, across tracks and bumpers, and into a catch at the end.

This simple paper toy spins through the air like a mini-helicopter!

Meet a kinetic sculptor.

Spin the bottle to see beautiful swirling shapes

This stuff can't make up its mind -- is it a liquid or a solid?

Become an aircraft designer!

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

Wind tubes are a playful and inventive way to explore the effect that moving air has on objects.

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

How good is your friend's driving? You be the seismometer, and find out whether your pal is a smooth sailor or a mover and shaker.