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Counting With Quadrants
Source Institutions
Millions of organisms can live in and around a body of water.
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What's in the Water?: Biotic and Abiotic Elements in Aquatic Ecosystems
Source Institutions
In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.
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Don't Stop for Hitchhikers
Source Institutions
In this activity, learners role-play the part of lake inhabitants and the aquatic exotics who displace the native species.
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Sustainable Grazing
Source Institutions
In this activity, learners investigate the food, water, and space needs of common livestock animals.