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In this activity, learners make a 3-D model of DNA using paper and toothpicks. While constructing this model, learners will explore the composition and structure of DNA.

Learners make a mobile model of a carbon atom using clay, wire, and pipe cleaners.

In this experiment, pairs of learners explore how cold water affects circulation. The mammalian diving reflex (MDR) slows circulation when the body is exposed to cold water.

In this activity about camouflage, learners create a model that shows how a flounder is able to blend into a variety of environments.