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    In this activity, learners are introduced to tree rings by examining a cross section of a tree, also known as a “tree cookie.” They discover how tree age can be determined by studying the rings and...

    1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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    In this activity, learners discover how to determine the distance to a lightning strike or nearby thunderstorm. Learners participate in a series of exercises that simulate how the sound of thunder...

    free Ages 6 - 14 5 to 10 minutes
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    NOAA
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    In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials. Learners group together and link arms or hold hands to form chemical...

    1 cent - $1 per group Ages 8 - 14 45 to 60 minutes

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    • Oregon Museum of Science and Industry (remove)
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