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    Community Science Workshop Network
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    In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary....

    $5 - $10 per student Ages 8 - 18 1 to 2 hours
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    The Exploratorium
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    In this activity, learners make a photographic image--without a camera! Using a light source, an object to block the light, and light-sensitive paper, learners create wonderful silhouette-like...

    $5 - $10 per student Ages 11 - 18 30 to 45 minutes
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    The Exploratorium
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    In this activity related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object. Learners will also discover that because...

    1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids. Inside the containers are mixtures of water and some small...

    $5 - $10 per group Ages 4 - 14 5 to 10 minutes
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    The Exploratorium
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    Learners use two mirrors to explore how images of images of images can repeat forever. This resource includes a light-ray diagram to help learners understand what they are seeing -- images appear...

    Over $20 per group Ages 8 - 14 5 to 10 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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    Science Friday
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    In this activity related to nanotechnology, learners observe some of the effects that result from creating a thin layer of material several nanometers thick. They also learn about thin film...

    $5 - $10 per group Ages 11 - 14 10 to 30 minutes
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    The Exploratorium
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    In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see. Learners hold on to a device consisting of two mirrors glued back to...

    Over $20 per group Ages 8 - 14 5 to 10 minutes
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    The Exploratorium
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    In this activity, a lightbulb is placed in front of a concave mirror. The actual lightbulb is not visible to the viewer, but the viewer can see the mirror image of the lightbulb formed in space....

    Over $20 per group Ages 8 - 14 30 to 45 minutes
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    The Exploratorium
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    In this math activity related to light, learners explore why a light, such as a candle or a streetlight, looks dimmer the farther away from it we get. The answer lies in the Inverse Square Law,...

    $5 - $10 per student Ages 11 - 18 10 to 30 minutes

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