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Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.
Supercooled Water Drops
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In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly.
Melting Ice
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In this activity, learners explore density, convection, stratification, and, by inference, the melting of icebergs. Learners make hypotheses, test their hypotheses, and explain their observations.
Meltdown
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In this activity, learners heat ice and water of the same temperature to get a hands-on look at phase changes. This is an easy and inexpensive way to introduce states of matter and thermodynamics.
We all Scream for Ice Cream
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In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.