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Great Lakes for Kids
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Facts About the Great Lakes
Geology
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Paleozoic Era
Mesozoic Era
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Salty Versus Fresh
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Great Lakes for Kids
Salty Versus Fresh
By the U.S. Army Corps of Engineers, Public Domain
The Great Lakes are filled with fresh water, not salt water. Why?
The Great Lakes are not river-fed. Instead, they are fed by rain and runoff.
The Great Lakes have an outlet (The St. Lawrence Seaway), while oceans do not.
Salt water cannot enter the Great Lakes because they are above sea level. The Great Lakes step down into the ocean.
Our World: Why Are Oceans Salty? (2:30)
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