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In this activity, learners create models of erosion and floods and learn to recognize both in their environment. Using sand, wax paper, and water, learners observe the processes of erosion and flooding. Erosion in the natural world is the gradual wearing away of rock and soil by physical breakdown, chemical solution and transportation of material caused by wind, water or ice. Flooding is the overflow of a very large amount of water from a source, such as a river or lake, into a previously dry area. This activity can be found on pages 48-49 of the activity guide.
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