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In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.

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

In this activity (1st on the page), learners explore circadian rhythms by keeping track of their body temperature.

In this activity, learners discover how sweating makes us feel cooler. Learners put on one damp sock and one dry sock and sit in front of a fan.

In this outdoor activity/game, learners use thermometers to simulate how lizards survive in habitats with extreme temperatures.