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    Science Museum of Minnesota
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    This is a demonstration you can use to show learners how valves and pumps work in concert to move blood through the circulatory system.

    1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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    Science Museum of Minnesota
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    In this activity, learners will investigate the sounds of the heart. Learners construct two stethoscopes, one out of paper and another made from vinyl tubing and a plastic bottle, and investigate...

    $1 - $5 per group Ages 6 - 14 30 to 45 minutes
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    Science Museum of Minnesota
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    Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper. They investigate their "valve" by altering it to see what happens...

    1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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    NSBRI
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    In this activity about the heart (on page 22 of the PDF), learners examine sheep or chicken hearts to learn about the heart's structure and the flow of blood through the heart. Learners will...

    $10 - $20 per group Ages 8 - 14 45 to 60 minutes