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Overview of the Male Reproductive System

Author(s): Roberta Anding, MS, RD/LD, CDE
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How Fast Does Your Heart Beat?

To focus student’s attention, begin the activity by asking, Have you ever wondered how fast your heart beats when you run? and Does your heart beat faster when you run or when you rest? Stimulate a discussion about collaboration between the heart and lungs by asking, Do your heart and lungs work together? Mention that students will perform an experiment to answer these questions.