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Learners investigate signs of a chemical reaction when they mix vinegar and baking soda. In addition to a gas being produced, learners also notice the temperature decreases.

In this activity, learners explore the devices used over time to measure changes in temperature.

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

In this fun hands-on activity, learners use simple materials to investigate evaporation. How can the evaporation of water on a hot day be used to cool an object? Find out the experimental way!

In this two-part activity, learners explore the properties of liquid crystals, which are responsible for why mood rings change color.