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    NASA
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    In this activity (page 7 of PDF), learners will identify the general two-dimensional geometric shape of the uppermost cross section of an impact crater. They will also draw connections between the...

    $10 - $20 per student Ages 8 - 14 45 to 60 minutes
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    NASA
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    In this activity, learners sample a star field to estimate the number of stars in the universe. This activity simulates how astronomers use sampling instead of census (counting) to more easily...

    free Ages 8 - 14 45 to 60 minutes

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    • Oregon Museum of Science and Industry (remove)
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