Demonstrating Water Erosion Of Land Masses | Education.com - 1 views
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Andrew Todd on 15 Feb 13Standard - 4.NS.2 - Observe, investigate and give examples of ways that the shape of land changes over time.(4.2.1, 4.2.2, 4.2.3)
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Extension: Students could experiement with different laying techniques of the soil, rock, clay, etc. to see if erosion occurs differently based on the order of earth's layers. This experiment could be completed in small groups, all studying different arrangements of the earthen materials. Students could present their findings to the class or in the form of a report.
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