Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder

Learners color and cut out a spiral-shaped snake. When they hang their snake over a radiator, the snake spins.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

Learners test two jars of ice water, one covered and one open, for changes in temperature. After placing the jars in the sun, learners discover that the covered jar cools down more slowly.

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

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

Learners cover a bottle with a balloon. When they immerse the bottle in warm water, the balloon inflates. When they immerse the bottle in a bowl of ice, the balloon deflates.

Learners tour their school or home looking for sources of indoor air pollutants (IAPs).

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

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