River Cutters (GEMS)
Within this comprehensive curriculum guide from Great Explorations in Math and Science (GEMS), students construct a model watershed using diatomaceous earth and a drip system. By running river models, students are introduced to the concepts of erosion, geological sequencing, watershed, and human factors. Seven sessions are provided for grades 6 through 9.
Authors: C. Sneider, K. Barrett, K. Beals, L. Berman, J. Kaufmann, R. Knott
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