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In this activity, learners discover that sand is the major ingredient in glass.

$5 - $10 per group Ages 8 - 11 45 to 60 minutes
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In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes