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In this simple demonstration, learners investigate the properties of air pressure. Learners place an index card on top of a glass full of water, then invert the glass.

In this quick and easy activity and/or demonstration, learners use two empty 2-liter bottles and hot tap water to illustrate the effect of heat on pressure.

Demonstrate the Bernoulli Principle using simple materials on a small or large scale.

The demonstration/experiment provides quick proof that air has mass.