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Clear Water, Murky Water
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How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?
Balloon Impacts
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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.
Kid Moon: Splat!
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In this activity, learners model ancient lunar impacts using water balloons.
Making An Impact!
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In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.