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In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.

Learners create a tool to measure how well they grip a wet object when their fingers are smooth versus wrinkly. Are smooth or wrinkly fingers better at holding on to the object?

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