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    Discovery Education
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    In this weeklong activity, learners explore how the growth of additional bacteria after pasteurization is slowed in colder temperatures. Learners discover how non-refigerated milk sours and how the...

    $1 - $5 per group Ages 6 - 11 1 to 7 days
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    Discovery Education
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    In this activity, learners use pinecones to create a hygrometer, a device that measures the moisture content of the air. Learners discover that in dry air, pinecones open their scales to disperse...

    $5 - $10 per group Ages 4 - 14 2 to 4 hours

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