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Cool off in the heat with this project! Learners use simple materials to build a fan that runs on a motor.

Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.

In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.

In this activity, learners explore liquid crystal thermometers to observe how heat flows by conduction, convection, radiation, and evaporation.

Learners apply their knowledge of heat transfer to design two cans - one that will retain heat and one that will cool down quickly.

In this activity on page 2 of the PDF, learners test different materials to find out which is the best insulator.

In this activity, learners explore how engineers have met the challenge of keeping foods, liquids, and other items cool.