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What Trickles Down?
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Learners design their own experiment to explore the permeability of different materials such as soil, sand, gravel, and marbles.
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Amphibian Skin
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In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.
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Soak It Up: Understanding Amphibian Permeability
Source Institutions
In this activity, learners will discover how the thin layers of amphibians' skin allow water and other chemicals to pass through it.