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Seventh-graders Study the Hydrosphere

Seventh-graders in Kristin Suer’s earth science class have been doing an in-depth study of the earth’s hydrosphere. In April, students conducted a river model lab. “They explored how water moves, erodes, and deposits sediments in a moving system,” Suer said. “Students made discoveries of how water discharge rates, gradient, and soil type affected their stream. They got their hands dirty and simulated meandering rivers, oxbow lakes, deltas, canyons, and alluvial fans.” In an early May lesson, students played a game simulating the effects of pollution on three watersheds that lead to the Ohio River. The interactive game laid the watersheds out on a large, square mat. Students rolled a dice to determine which type of pollution would impact their watershed and they learned about the different outcomes.