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This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure.

In this demonstration, learners observe the effects of air pressure. They will watch as marshmallows inside a bottle expand as a vacuum pump removes air from the bottle.

In this activity, learners observe what would happen to their bodies if they went to outer space without a space suit.

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.

In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels.

Conduct a simple experiment to explore how temperature changes can make things expand or contract.