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    Lawrence Hall of Science
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    Scientists use enormous wind tunnels to test the design of planes, helicopters, even the Space Shuttle. In this simulation activity, learners create a miniature wind tunnel test by blowing air with...

    $5 - $10 per group Ages 6 - 14 10 to 30 minutes
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    American Chemical Society
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    In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped. Use this activity to...

    $5 - $10 per student Ages 6 - 18 10 to 30 minutes
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    University of Wisconsin-Madison
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    In this activity (pages 17-31), learners are introduced to techniques that are used to determine the structures of solid materials. Building or disassembling an instrument built from LEGO bricks...

    $5 - $10 per group Ages 14 - adult 1 to 2 hours

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