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    American Physical Society
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    Learners shine the light of a laser pointer through sheets of fabric that all have a different number of threads per inch. By looking at the patterns created, learners calculate the wavelength of...

    $5 - $10 per group Ages 11 - 14 10 to 30 minutes
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    American Physical Society
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    Learners experiment to see which colors of light will cause a phosphorescent (glow-in-the-dark) material to glow. Different colors of light have different wavelengths, and different amounts of...

    $10 - $20 per group Ages 11 - 14 10 to 30 minutes
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    Mount Holyoke College
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    In this four-part activity, learners explore light and sound through a variety of hands-on investigations. First, learners explore sound waves and observe how sound can travel through other...

    $5 - $10 per group Ages 8 - 14 1 to 2 hours
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    Carleton College
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    This paper describes a working-model demonstration of Ernest Rutherford's 1911 experiment about the nature of atoms. In this demonstration, a model of an atom is constructed inside a sealed...

    $10 - $20 per group Ages 11 - adult 45 to 60 minutes
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    The Exploratorium
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    In this activity, learners use a compact disc to make a spectrometer, an instrument used to measure properties of light. Learners use their spectrometer to view a continuous spectrum produced by...

    $1 - $5 per student Ages 11 - 18 30 to 45 minutes
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    University of Wisconsin-Madison
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    In this activity (pages 17-31), learners are introduced to techniques that are used to determine the structures of solid materials. Building or disassembling an instrument built from LEGO bricks...

    $5 - $10 per group Ages 14 - adult 1 to 2 hours
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    The Exploratorium
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    Like water drops in falling rain, a CD separates white light into all the colors that make it up. The colors you can see reflecting from a CD are interference colors, like the shifting colors you...

    $1 - $5 per student Ages 6 - 14 5 to 10 minutes
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    American Physical Society
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    In this activity on page 13 of the PDF, learners use a laser pointer (with known wavelength of light) to measure the thickness of a human hair. By shining the laser on a hair, analyzing the...

    $5 - $10 per group Ages 11 - 14 10 to 30 minutes
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    Community Science Workshop Network
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    In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color. First, learners use relatively simple materials to...

    $10 - $20 per group Ages 8 - 18 45 to 60 minutes
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    The University of Texas McDonald Observatory
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    In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources. Learners can be challenged to make technological improvements to their...

    $5 - $10 per group Ages 14 - 18 45 to 60 minutes

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