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Learners observe a simple balloon model of an electrostatic precipitator. These devices are used for pollutant recovery in cleaning industrial air pollution.

This board game teaches learners about energy decision making. Players select cards that determine the transportation and home design that will influence their expenses as they play.

This activity (on pages 13-18) has learners build a model tree and then figure out how to make their tree stand up by itself.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

Learners observe and discuss a vacuum cleaner as a model of a baghouse, a device used in cleaning industrial air pollution.

This is an activity about turbidity, or the amount of sediment suspended in water.

In this activity, learners build a model of a self-sustaining habitat (growing grass and beans from seeds).

Learners develop an understanding of air pressure in two different activities.

Learners build devices from rubber bands to test for invisible air pollutants.

This is an activity where learners will discover what types and how many insects live in their own backyard.