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As a model of acid rain, learners water plants with three different solutions: water only, vinegar only, vinegar-water mixture.

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

In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels.

In this outdoor activity/field trip, learners locate and study plants and animals in several freshwater pond habitats.