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In this activity, learners explore how salt water freezes in comparison to fresh water.

1 cent - $1 per group Ages 6 - 14 1 to 2 hours
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Don't scream for ice cream -- make it with milk, sugar, flavoring and some 'salt-water' ice. Discover the chemistry of ice cream by creating your own.

$1 - $5 per student Ages 4 - 11 10 to 30 minutes
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In this activity, learners use objects they find on a nature and water to make creative frozen sculptures.

free Ages 4 - adult 10 to 30 minutes