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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.

This lesson guide includes six simple and quick activities to help learners better understand Bernoulli's Principle.

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

In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder.

Learners develop an understanding of air pressure in two different activities.