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Make a Green Gumball Black

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In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!
$1 - $5 per student Ages 6 - 11 10 to 30 minutes

Soda Geyser

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In this quick activity (page 1 of PDF under SciGirls Activity: Lift Off), learners will use the ever-popular soda geyser experiment to test the reactivity of the various sugar candies or mints.
$1 - $5 per group Ages 8 - 14 10 to 30 minutes