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    Science Friday
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    In this activity, learners explore phosphorescence and how certain materials can absorb and store energy from a light source. Learners use critical thinking skills to hypothesize which type of...

    $10 - $20 per group Ages 11 - 14 45 to 60 minutes
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    Twin Cities Public Television
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    This activity (on page 2 of the PDF under SciGirls Activity: Earthquakes) is a full inquiry investigation into aerial imagery. Learners will use the internet to gather free aerial imagery of nearby...

    free Ages 8 - 14 45 to 60 minutes
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    Science Friday
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    In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways. By building their own pinhole viewers, learners make observations about the...

    1 cent - $1 per student Ages 11 - 14 45 to 60 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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    Children's Creativity Museum
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    In this activity, children and adults work together to explore their relationship with technology and examine ways to make sustainable media consumption choices. Learners watch a short clip of a...

    $1 - $5 per group Ages 4 - 14 10 to 30 minutes
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    The Exploratorium
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    Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!...

    $1 - $5 per student Ages 8 - 18 45 to 60 minutes
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    American Museum of Natural History
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    In this activity, learners explore the gait of horses by constructing flipbooks with British photographer Eadweard Muybridge's famous photographs. Learners print out three flipbooks that...

    $1 - $5 per student 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 (Behind the Scenes with Chemistry), learners make three of Harry Potter's essential school supplies: quills, ink, and color-changing paper. Learners use...

    $10 - $20 per student Ages 8 - 14 1 to 7 days
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    Science Museum Group
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    In this activity, learners make a device called a phenakistoscope, which displays a continuously looping animation consisting of images drawn onto a spinning disc. Learners can use the provided...

    $1 - $5 per student Ages 6 - 14 30 to 45 minutes
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    Lawrence Hall of Science
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    In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA). Learners will be able to...

    1 cent - $1 per student Ages 6 - 18 10 to 30 minutes