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Learners observe and discuss a simple model of a wet scrubber, a device for cleaning industrial air pollution.

Learners compare the properties and solubilities of Styrofoam (TM), ecofoam packing peanuts, and popcorn. First, the solubility of each substance is tested in water.

In this activity, learners simulate the separation techniques that materials recovery facilities (MRFs) use and then design their own series of recycling techniques.

In this activity, learners electrically plate zinc onto brass objects.