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    The Exploratorium
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    In this optics activity, learners discover that not all shadows are black. Learners explore human color perception by using colored lights to make additive color mixtures. With three colored lights...

    $5 - $10 per group Ages 6 - 18 5 to 10 minutes
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    The Exploratorium
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    In this optics activity, demonstrate diffraction using a candle or a small bright flashlight bulb and a slide made with two pencils. Learners will observe the diffraction pattern and learn that...

    $5 - $10 per student Ages 8 - 18 10 to 30 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport. When polluted water evaporates, the pollutants remain behind, becoming...

    $5 - $10 per group Ages 8 - 14 30 to 45 minutes
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    Oregon Museum of Science and Industry
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    In this activity, learners investigate vitamin C. Using a simple starch and iodine demonstration, learners discover that vitamin C is an antioxidant, and protects us by reacting with toxic...

    $5 - $10 per group Ages 8 - adult Under 5 minutes
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    NISE Network
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    In this activity, learners use their sense of smell to explore the world on the nanoscale. Learners discover that we can smell some things that are too small to see, and that a nanometer is a...

    $5 - $10 per group Ages 4 - adult 5 to 10 minutes
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    Biotechnology and Biological Sciences Research Council
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    In this activity (p.5-6 of PDF), learners investigate natural selection. Learners discover that natural selection, which takes place over decades, can lead to altered populations within a species....

    $5 - $10 per group Ages 8 - 11 10 to 30 minutes
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    American Association for the Advancement of Science
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    Learners classify a variety of objects by their characteristics. They then design an experiment to determine which objects float or sink in water and add this characteristic to their classification...

    $5 - $10 per group Ages 8 - 11 45 to 60 minutes
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    The Exploratorium
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    In this activity, learners make their own heat waves in an aquarium. Warmer water rising through cooler water creates turbulence effects that bend light, allowing you to project swirling shadows...

    $5 - $10 per group Ages 8 - 18 10 to 30 minutes
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    TERC
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    In this playful activity, learners explore the structure of the cell—the basic unit of every living organism—by creating a model of cell structures using soap bubbles, and by examining a slice of...

    $5 - $10 per group Ages 6 - 14 45 to 60 minutes
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    The Exploratorium
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    In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic. Learners place a fork between two pieces of polarizing material and induce stress by...

    $5 - $10 per group Ages 8 - 18 5 to 10 minutes

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    • Oregon Museum of Science and Industry (remove)
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