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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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    PhET
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    In this online activity, learners make a whole rainbow by mixing red, green, and blue light. They can change the wavelength of a monochromatic beam or they can filter white light. They can also...

    free Ages 6 - adult 5 to 10 minutes
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    The Exploratorium
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    In this activity, learners trap a thin layer of air between two pieces of Plexiglas to produce rainbow-colored interference patterns. Learners bend, twist, or press on the plates to observe...

    $1 - $5 per student Ages 8 - 18 10 to 30 minutes
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    The Exploratorium
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    The beautiful iridescent colors of a bubble in a can! With this Exploratorium Science Snack, create beautiful soap films on the open end of a can to see beautiful rainbows of color.

    1 cent - $1 per student Ages 4 - 18 5 to 10 minutes
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    Centers for Ocean Sciences Education Excellence
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    In this activity, learners use open inquiry to learn about the process of science as well as gain experience regarding the Law of Conservation of Mass, dissolution, and density. Learners replicate...

    $1 - $5 per group Ages 8 - 14 1 to 2 hours
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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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    The Exploratorium
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    In this activity, learners explore what happens when polarized white light passes through a sugar solution. Learners use a relatively simple setup to investigate light polarization and reveal...

    $1 - $5 per student Ages 8 - 18 30 to 45 minutes
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    The Exploratorium
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    In this activity, learners explore chemiluminescence and fluorescence. Learners examine 3 different solutions in regular light, in the dark with added bleach solution, and under a black light. This...

    $10 - $20 per group Ages 8 - 18 30 to 45 minutes
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    The Exploratorium
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    In this activity, learners use simple materials to create giant bubbles. Learners will explore what gives bubbles their shape, what makes them break or last, what causes the colors and patterns in...

    $1 - $5 per group Ages 6 - 14 10 to 30 minutes

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