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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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    The Exploratorium
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    In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes. By observing...

    $1 - $5 per student Ages 8 - 18 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) about the "Tyndall effect," the scattering of visible light when it hits very small dispersed particles. Learners will shine a laser...

    $5 - $10 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 nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible particles may be vs. their old...

    $10 - $20 per group Ages 8 - 14 2 to 4 hours
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    Twin Cities Public Television
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    This is an activity (located on page 3 of the PDF) about how visible light is affected by tiny nanoscale structures, producing iridescence on butterfly wings, soap bubbles, etc. Learners will break...

    $10 - $20 per group Ages 8 - 14 1 to 2 hours