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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.

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

In this activity, learners make water rockets to explore Newton's Third Law of Motion. Learners make the rockets out of plastic bottles and use a bicycle pump to pump them with air.

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

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