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    Science Friday
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    In this activity, learners use household materials to investigate and explore their ability to smell an odor. Learners compare and contrast results to determine if some individuals have a better...

    Over $20 per group Ages 11 - 14 45 to 60 minutes
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    Oregon Museum of Science and Industry
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    Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules. This is a good introduction to atoms and...

    $5 - $10 per group Ages 4 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    This display shows slow chemical reactions in colorful crystal formations known as Liesegang Rings. These reactions are similar to those forming the rings in agates. This activity is recommended...

    $5 - $10 per student Ages 14 - adult 1 to 4 weeks
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    University of Southern Mississippi
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    In this activity, learners discover how gelatin can be used as a medium for drug delivery. Learners create colored gelatin and then cut out pieces of the gelatin to simulate medicine (pills)....

    $1 - $5 per group Ages 8 - 18 4 to 24 hours
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    California Academy of Sciences
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    In this activity, learners gain knowledge about how carbon moves through all four of the Earth’s major spheres (biosphere, hydrosphere, atmosphere, and lithosphere), and understand how humans...

    1 cent - $1 per group Ages 8 - 18 30 to 45 minutes
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    Twin Cities Public Television
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    In this activity about molecular diffusion (located on page 2 of the PDF), learners will make predictions and move molecules of iodine through a seemingly solid plastic sandwich bag. The process of...

    $1 - $5 per group Ages 8 - 14 10 to 30 minutes
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about diffusion of small molecules across cell membranes. Learners will use gelatin to represent a cell and dye to represent molecules to model...

    $10 - $20 per group Ages 8 - 14 1 to 7 days
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    Community Science Workshop Network
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    In this activity, learners explore how hot and cold water move. Learners observe that temperature and density affect how liquids rise and fall. Learners also discover that although they can't...

    $1 - $5 per student Ages 4 - 11 45 to 60 minutes
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    Polymer Science Learning Foundation
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    In this activity, learners investigate the movement of water into and out of a polymer. Learners test the diffusion of water through gummy bears, which are made of sugar and gelatin (a polymer)....

    $1 - $5 per student Ages 11 - 18 1 to 7 days
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    NISE Network
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    In this story time program, young learners listen to the Dr. Seuss book "Horton Hears a Who." Learners use their eyes to look at small things using lenses and use their sense of smell to...

    Over $20 per group Ages 4 - 11 10 to 30 minutes

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