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In this group activity, learners will mark important developments of life on Earth on a timeline (each foot in length representing 200 million years).

Based on color photographic images, learners compare geological features on Earth and Mars to understand similarities and differences between the two planets, and consider the forces that created land

In this activity, learners use sand and ice cubes to create a model of permafrost and the effects of the ice melting through the surface.

In this activity, learners examine photo images of Earth taken from space, and attempt to identify and explain some of our planet's geological features.