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    Pratt School of Engineering, Duke University
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    Each learner chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days. By weighing the gum before and after chewing, they can determine the amount of mass...

    $1 - $5 per group Ages 11 - 14 2 to 4 hours
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    Cornell Center for Materials Research
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    In this activity, learners discover the principles of edible glass by making a supersaturated sugar solution. The goal of this activity is to provide an interesting experiment which learners of...

    $5 - $10 per group Ages 8 - adult 2 to 4 hours