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In this activity (located on page 6 of the PDF), learners explore the ways people access water in their homes.

1 cent - $1 per student Ages 6 - 11 10 to 30 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