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Cardio Comparisons
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In this activity, learners discover how their heart rate changes in different situations.
Heart to Heart
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In this activity, learners compare ways to measure their heart rates. Learners build their own stethoscopes and learn how exercise affects heart rate.
What's in Your Blood?
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Doctors often send a sample of blood to a lab, to make sure their patients are healthy.
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.