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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 trick, learners discover how to stick a straw to the palm of their hand, window door, or anywhere using static electricity.

In this demonstration, learners investigate mass, gravity, and acceleration by dropping a wooden bar with a balloon attached to its underside, a mass suspended from it by rubber bands, and a sharp-poi