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Grade 8 - Fresh and Salt Water Systems

Exploring water distribution, ecosystems, and human use of water

What is the process by which water changes from liquid to gas?









Which process removes salt from seawater to make it drinkable?









What do we call underground layers of rock that hold water?





What is the main cause of ocean tides on Earth?





Which type of water is more dense, salt water or fresh water?





Which current carries warm water from the Gulf of Mexico to Europe?