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In this activity, learners create models of erosion and floods and learn to recognize both in their environment.

In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.

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 playful activity, learners explore the structure of the cell—the basic unit of every living organism—by creating a model of cell structures using soap bubbles, and by examining a slice of onio