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Go with the Flow
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In this activity, learners discover how hard their hearts work to pump blood.
The Nose Knows!
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In this activity on page 9 of the PDF, learners test how flavoring extracts move through the walls of a balloon.
Slowing the Flow
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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.
Sounds of the Heart
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In this activity, learners will investigate the sounds of the heart.