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

In this activity, learners compare and contrast their own skin (including the area covered) with that of an orange.

In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.

In this activity, learners will explore how the human brain interprets environmental stimuli.

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?