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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

In this outdoor biology and math activity, learners estimate the size of a population of organisms too numerous to count.

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

In this activity, learners explore how various energy sources can be used to cause a turbine to rotate.