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Water Body Salinities I
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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.
What's in the Water?: Biotic and Abiotic Elements in Aquatic Ecosystems
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In this investigation learners explore the differences between, and interdependence of, living and nonliving elements in a water ecosystem.
Salt Water Revival
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In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.
Underwater Hide and Seek
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In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.
Freshwater Ecosystems
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In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.