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In this activity, learners set up an experiment to investigate the effects of hot air on the path of a laser beam.

In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns.

In this activity on page 7 of the PDF (Plants—The Green Machines), learners examine the effects that light and air have on green plants.

In this activity, learners make optical fibers out of strips of gelatin.