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    Museum of Science and Industry, Chicago
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    Learners use chromatography to separate and analyze the mixture of pigments in leaves. Use this activity to discuss photosynthesis as well as why leaves change color in autumn. Safety note: Nail...

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    The Exploratorium
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    This is an online exhibit about color perception. Learners set a random background color and then try to mix red, blue, and green light to match. Although this is a perception activity, it also...

    free Ages 6 - 18 5 to 10 minutes
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    Smithsonian National Zoological Park
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    In this family or group activity, learners conduct a chromatography experiment to reveal the colors that leaves "hide" under their green pigments. Use this experiment to predict what...

    $1 - $5 per student Ages 6 - 14 45 to 60 minutes
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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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    COSI
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    In this chemistry activity (page 5 of the PDF), learners will use milk and a few other basic ingredients to create a chemical change to make a color wheel. Although this is a previsit activity for...

    $10 - $20 per group Ages 8 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    In this art meets chemistry activity, early learners discover the almost magical absorbent properties of salt while creating ethereal watercolor paintings. Learners first use watercolor to paint an...

    $5 - $10 per group Ages 4 - 6 10 to 30 minutes
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    American Chemical Society
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    In this activity on page 5 of the PDF, learners use chromatography to separate and identify pigments within various leaves. Learners soak leaf pieces in warmed rubbing alcohol and then dip coffee...

    $1 - $5 per student Ages 8 - 14 1 to 2 hours
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    The Exploratorium
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    In this activity, learners overlap the three primary colors to see how all other colors are made. This activity also explains how color can be explained by the subtraction of colors of light,...

    free Ages 11 - 18 10 to 30 minutes
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    Science Friday
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    In this activity, learners perform an experiment to find out what determines a flower's color. Learners extract petal juice, use acid and base indicators, and observe chemical reactions to...

    $10 - $20 per group Ages 11 - 14 45 to 60 minutes
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    NASA
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    In this activity, learners work in groups of four to explore light. Learners create new colors from the primary colors of light from flashlights covered in theatrical gels or cellophane. Then,...

    $5 - $10 per group Ages 8 - 14 10 to 30 minutes

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