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Continental Drift

For many years it was believed by geologists that the location of the continents was fixed. These scientists believed that the locations of the continents was determined many billions of years ago, as the young Earth cooled down from its original state as a ball of molten lava. It was believed that the continents were simply areas where the crust was too high for the oceans to cover them over.

The Earth's Crust


Modern scientific discoveries have helped us understand that this view of the Earth is inaccurate. The continents are more than just raised portions of the Earth’s crust. These massive rocks are made of materials which are different from the ocean floor. The continents are not fixed permanently in location in the Earth’s crust, but are free to move about across the Earth’s crust.