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In this activity, learners will use Google Sky to observe features of the night sky and share their observations.

free Ages 4 - 11 10 to 30 minutes
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In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes