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Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.

In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.

In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun.

Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.