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    American Society for Microbiology
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    Learners recreate the digestion process that takes place within their large intestines. They mash up bananas into mush, then place it in an Erlenmeyer flask covered with a balloon. Learners observe...

    $1 - $5 per group Ages 8 - 14 1 to 7 days
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    COSI
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    In this biology activity, learners recreate the process of digestion in a zip lock bag. A bit of soda pop added to some crumbled crackers approximates how acids in the stomach dissolve food. This...

    1 cent - $1 per student Ages 8 - 11 5 to 10 minutes
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    American Chemical Society
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    In this activity on page 7 of the PDF, learners use iodine to identify foods that contain starch. Compare the starch content of a ripe banana, an overripe banana, milk, and flour mixed with water....

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    American Chemical Society
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    In this activity on page 2 of the PDF, learners test different materials to find out which is the best insulator. Learners use aluminum foil, newspaper, plastic wrap, and wax paper to insulate ice...

    $1 - $5 per student Ages 6 - 14 1 to 2 hours
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    California Academy of Sciences
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    In this activity, learners will review the functions of basic digestive organs, understand how diet affects digestion, understand how digestive tracks may differ, and then step outside to compare...

    free Ages 8 - 18 30 to 45 minutes
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    American Association for the Advancement of Science
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    Learners draw and cut out shapes of organs from construction paper. Then they attach these organs to the body of one learner to make a life-sized map of all the internal organs. Use this activity...

    $1 - $5 per group Ages 8 - 11 45 to 60 minutes
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    National Health Museum
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    In this simulation, learners act out each digestive function of the organs, tissues, and cells in the digestive tract. Two parallel strips of tape on the floor 3-4 feet apart and the width of the...

    $5 - $10 per group Ages 11 - 18 30 to 45 minutes
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    National Health Museum
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    In this activity that can be used as a lab or demonstration, learners use Lactaid® and lactose to demonstrate the concept of enzyme action. Learners test a drop of milk and Lactaid® for the...

    Over $20 per group Ages 14 - 18 10 to 30 minutes
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    National Health Museum
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    This simulation helps learners understand what happens to food as it passes through the digestive system. The learner has a 3x5 index card representing food, which he / she carries to stations...

    $5 - $10 per group Ages 14 - 18 45 to 60 minutes
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    National Health Museum
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    In this highly collaborative activity, learners design and complete a controlled experiment which attempts to answer a simple question about the slime mold Physarum. Learners present their findings...

    Over $20 per group Ages 14 - 18 1 to 7 days