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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 use simple items to construct a device for indicating air pressure changes.

In this activity, learners use simple items to construct a device for indicating air pressure changes.

In this activity, learners make different shapes that hold exactly one mole of gas (air).

In this activity, learners explore a surprising method for calculating the mathematical constant pi, known as Buffon's Needle.

In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer.