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    Institute of Physics
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    In this demonstration about momentum, use physics to distinguish between a hard-boiled egg and a raw egg without cracking them open. Learners will discover that hard-boiled eggs are much easier to...

    1 cent - $1 per group Ages 4 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    Learners design, build, and test models of "dragon boats" made from up to three milk cartons. They observe how well the boats can be pulled through water in a homemade testing tank, and...

    $5 - $10 per group Ages 4 - 14 30 to 45 minutes