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In this experiment, learners float colored ice cubes in hot and cold water.

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes