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In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.

In this activity, learners (at least three) work together to explore the effects of atmospheric pressure.

In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.

In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top.

In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.

Get all wrapped up in a lesson about skin!

In this demonstration, learners investigate mass, gravity, and acceleration by dropping a wooden bar with a balloon attached to its underside, a mass suspended from it by rubber bands, and a sharp-poi

In this activity, learners use plastic water bottles, wood, and water to build an inexpensive and portable tool to demonstrate one atmosphere of pressure at sea level.

Spin a short piece of PVC pipe that's been marked up, and watch a triangle appear. Enjoy this optical illusion from the Exploratorium's Science Snack series.