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In this multi-station lab, learners conduct a series of experiments to explore the processes and effects of weathering and erosion.

$5 - $10 per group Ages 8 - 14 1 to 7 days

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In this activity (on pages 12-15), learners make a crater model and test the effects of weather (rain) on its surface.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes