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In this geology activity learners build a "squeeze box," which allows them to compress layers of sediment. This is a great way to investigate folding and faulting in the Earth.

In this activity, learners try to figure out who has their matching rock type by reading a description of their rock (no talking!).

In this activity you'll see how the sun's tilt on its axis changes the length of shadows. For example, why is your shadow longer in winter than in summer?

In this activity, learners simulate Otto von Guericke's famous Magdeburg Hemispheres experiment.