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In this activity, learners create a model of a hot air balloon using tissue paper and a hairdryer. Educators can use this activity to introduce learners to density and its role in why things float.

Why is ocean water sometimes the warmest when the average daily air temperature starts to drop? In this activity, learners explore the differing heat capacities of water and air using real data.

In this two part activity, learners become draft detectives by constructing their own draft catchers to detect drafts around windows or doors.

In this weather forecasting activity, learners determine the location of cold and warm fronts on weather plot maps.

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

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

In this activity, learners explore clouds and how they form.

In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust.