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In this activity, learners explore how to protect their skin while applying pesticides to plants.

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

In this activity, learners explore the forces at work in water. Learners experiment to find out what happens to pepper in water when they touch it with bar soap and liquid detergent.

In this activity, learners will discover how the thin layers of amphibians' skin allow water and other chemicals to pass through it.