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    California Science Center
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    In this activity, learners will create a magnifying glass called a waterscope, using water and household items, to examine various objects. Learners will explore magnification and think about why...

    $1 - $5 per student Ages 4 - 11 10 to 30 minutes
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    TERC
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    Learners explore their surroundings while reasoning about categories and counting. Pose a question that involves locating items in the room or building, and have learners count how many they can...

    free Ages 4 - 14 5 to 10 minutes