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    The Exploratorium
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    Align four color transparencies, each one a single color (cyan, magenta, yellow, and black), and see a beautiful full color image. Make sure you have access to a color printer that can print to a...

    1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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    Oregon Museum of Science and Industry
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    Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light. Learners discover that some chemical reactions release energy in the form of light, and...

    $1 - $5 per group Ages 4 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    In this chemistry lab activity, learners model the colors of fireworks by burning metallic solutions in a flame and observing the different colors produced. The color is determined by the...

    $5 - $10 per group Ages 14 - adult Under 5 minutes
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    Optical Society of America
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    In this activity, learners create a water prism to break light into the seven colors of the rainbow. This is a quick activity that can be used to demonstrate what happens when light is refracted...

    free Ages 6 - 11 Under 5 minutes
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    The Exploratorium
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    If you had a long tube with a 5 millimeter wide slit, would you see the entire Golden Gate Bridge? Of course not, but if you moved that slit back and forth rapidly, you might see how your brain...

    1 cent - $1 per student Ages 6 - 14 Under 5 minutes
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    Optical Society of America
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    In this optics activity, learners use water to make a coin "appear" and "disappear." Use this activity to demonstrate how light refracts and introduce light as waves. This...

    1 cent - $1 per student Ages 6 - 11 Under 5 minutes
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    The Exploratorium
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    This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict? In this Exploratorium produced activity, do you see an oval or circle...

    1 cent - $1 per student Ages 4 - adult Under 5 minutes
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    The Exploratorium
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    In this quick optics activity, learners use a dim point of light (a disassembled Mini MagLite and dowel set-up) to cast a shadow of the blood supply in their retina onto the retina itself. This...

    $1 - $5 per student Ages 8 - 14 Under 5 minutes
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    The Exploratorium
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    Create an illusion where it appears that your hand has a hole in it. You'll see the results from when one eye gets conflicting information.

    1 cent - $1 per student Ages 4 - 14 Under 5 minutes
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    Colorado State University
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    This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly. They will...

    1 cent - $1 per group Ages 8 - 18 Under 5 minutes

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