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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.8-9 of PDF), learners investigate the evolution of wheat by conducting sedimentation tests on different flours. The evolution of wheat from wild grasses demonstrates the...

    $5 - $10 per group Ages 8 - adult 10 to 30 minutes
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    Lawrence Hall of Science
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    In this online activity, learners measure aspects of their bodies in centimeters, then electronically submit data on their measurement. They can then compare their measurements to the lengths of...

    free Ages 4 - 11 10 to 30 minutes
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    American Chemical Society
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    In this activity, learners add objects and substances to carbonated water to discover that added objects increase the rate at which dissolved gas comes out of solution. Learners are then challenged...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity, learners experiment with the density of ice, water, and oil. Learners will discover that the density of a liquid determines whether it will float above or sink below another...

    $1 - $5 per student Ages 6 - 11 10 to 30 minutes
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    Twin Cities Public Television
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    This is a quick activity (on page 2 of the PDF) that illustrates how nanoscale structures, so small they're practically invisible, can produce visible/colorful effects. Learners will use clear...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    New York Hall of Science
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    In this activity, learners discover that people often see what they expect to see and hear what they expect to hear. Your brain gets all of its information about the outside world through your five...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    WGBH
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    In this activity, learners examine their fingerprints and learn that they can be categorized by shape, but each fingerprint is unique. Learners collect their fingerprints using pencil and tape and...

    1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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    NISE Network
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    This is a demonstration about how nature inspires nanotechnology. It is easily adapted into a hands-on activity for an individual or groups. Learners discover that lotus leaves are self cleaning...

    $5 - $10 per group Ages 6 - adult 10 to 30 minutes
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    Museum of Science and Industry, Chicago
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    Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn. Safety note: Nail...

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity, learners watch a figure "magically" float up through the air. Learners use 2 straws, a cup, rubber band, pipe cleaner, and piece of buoyant material to make a simple...

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes

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