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Plankton Feeding
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This activity provides a hands-on experience with a scale model, a relatively high viscosity fluid, and feeding behaviors.

The World's Water
Source Institutions
Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers.

Crazy Camouflage
Source Institutions
In this activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.