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In this activity, learners use tinfoil to build and test their own boats - which designs will float, and which will sink?

1 cent - $1 per student Ages 6 - 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
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Why is ocean water sometimes the warmest when the average daily air temperature starts to drop? In this activity, learners explore the differing heat capacities of water and air using real data.

1 cent - $1 per student Ages 11 - 18 45 to 60 minutes