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In this activity, learners discover how hard their hearts work to pump blood.

This experiment is designed to illustrate how fluids, including water, have the ability to flow.

In this activity on page 9 of the PDF, learners test how flavoring extracts move through the walls of a balloon.

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, learners will investigate the sounds of the heart.