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    Oregon Museum of Science and Industry
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    This is an online activity where learners can virtually mix different colors of light or paint (you can switch between them) and see how the colors combine. It demonstrates how millions of colors...

    free Ages 6 - adult 5 to 10 minutes
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    PBS
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    In this math lesson, learners participate in a variety of activities that give them experience in recognizing, describing, and extending repeating and arithmetic patterns. Learners begin by...

    $5 - $10 per group Ages 6 - 8 1 to 2 hours
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    American Chemical Society
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    In this activity (on pages 4-5), learners make fake snow by adding water to the super-absorbant chemical from diapers, sodium polyacrylate. Different types of fake snow can be made by varying the...

    1 cent - $1 per group Ages 6 - adult 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity (posted on March 27, 2011), learners follow the steps to construct a mini zoetrope, a device that produces an illusion of action from a rapid succession of static pictures. First,...

    1 cent - $1 per student Ages 6 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners explore their eye pupils and how they change. Learners use a magnifying glass, mirror, and flashlight to observe how their pupil changes size in response to changes in...

    free Ages 8 - 14 10 to 30 minutes
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    NASA
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    In this pencil and paper activity, learners work in pairs and simulate how astronomical spacecraft and computers create images of objects in space. Learners will discover the process of how light...

    1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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    Community Science Workshop Network
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    In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction. First, learners use relatively simple materials to construct...

    $5 - $10 per group Ages 8 - 18 1 to 2 hours
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    Oregon Museum of Science and Industry
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    Learners experiment with a commercial photo-sensitive paper (Sunprint® or NaturePrint® paper). They place opaque and clear objects on the paper and expose it to bright light, observing the results....

    $5 - $10 per group Ages 6 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image. The ...

    1 cent - $1 per student Ages 4 - 11 5 to 10 minutes
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    American Chemical Society
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    In this activity on page 8 of the PDF, learners make three of Harry Potter's essential school supplies: quills, ink, and color-changing paper. Learners use supplies from the grocery store to...

    $10 - $20 per student Ages 8 - 14 1 to 7 days

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