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In this activity, learners will use a compact disc to build an air puck that can glide across a smooth tabletop. The puck glides with almost no friction on a cushion of air escaping from a balloon.

In this activity, learners make a yeast-air balloon to get a better idea of what yeast can do. Learners discover that the purpose of leaveners like yeast is to produce the gas that makes bread rise.

In this activity, learners explore a surprising method for calculating the mathematical constant pi, known as Buffon's Needle.

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