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In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.

In this "Sid the Science Kid" activity from Episode 108: My Ice Pops, learners observe reversible change while thinking about ways to make ice melt.

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

Learners explore the variables that affect the properties of ice and the places where different types of ice are found.