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In this activity on page 4 of the PDF (Water in Our World), learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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What causes frost to form on the outside of a cold container? In this activity, learners discover that liquid water can change states and freeze to become ice.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes