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In this activity about ramps, learners explore and measure the rate at which spherical objects roll down a ramp.

In this quick activity, learners use a toaster to investigate the source for the Earth's wind. Learners hold a pinwheel above a toaster to discover that rising heat causes wind.

This lesson focuses on molecular motion in gases. Learners compare the mass of a basketball when it is deflated and after it has been inflated.

Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.

In this activity (page 10), learners explore how molecules self-assemble according to forces of attraction and repulsion.