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    American Chemical Society
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    In this activity, learners investigate why apples turn brown. Learners discover that lemon juice interferes with the reaction that causes the browning.

    $1 - $5 per group Ages 4 - 11 2 to 4 hours
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    PBS
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    In this "Sid the Science Kid" activity from Episode 108: My Ice Pops, learners observe reversible change while thinking about ways to make ice melt. Learners freeze a piece of fruit in an...

    $1 - $5 per group Ages 4 - 6 2 to 4 hours

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    • Oregon Museum of Science and Industry (remove)
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