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How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

Learners take a field trip along a local body of water and conduct a visual survey to discover information about local land use and water quality.

In this activity, learners investigate the sense of sight and develop and conduct their own experiments.

In this outdoor activity, learners plan a simple foot path and create an environmental impact study of the natural area where the path would be.