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Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water.

In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.

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

In this activity, learners explore Charles' Law in a syringe.

This lesson challenges groups of learners to design and construct a wind generator with the most electrical output.