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In this activity, learners use a pneumatic trough (see related activity) to generate and collect pure oxygen.

In this activity, learners build a "pneumatic trough," a laboratory apparatus used for collecting pure gas samples over water.

On an airplane trip, learners have an opportunity to investigate the properties of air pressure at different altitudes.

In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.