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The Captain and Lake Wilmar

10th Grade Performance Task

Contributed by: The RAND Institute (RAND)

Students examine the ecosystem of Lake Wilmar through three coordinated performance tasks. In the first task, Decline in Freshwater Animal Populations, students use pH paper and water samples to investigate the effects of pH on freshwater animals. For the second task, Hot Rocks and Water, students use limestone samples and hot water baths to investigate the concepts of heat and temperature. In the last task, Rock Erosion, students investigate the effects of polluted vs. non-polluted water on rocks.


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