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Exploration and Settlement

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Devon Williams

on 20 May 2015

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Transcript of Exploration and Settlement

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During the Ice Age, much of the Earth's water was frozen glaciers. In some areas, the ocean floor was no longer covered by water.
Exploration and Settlement.
A glacier is a huge, thick sheet of slwly moving ice.
Thousands of years ago, the Earth was much colder than it is today. This time in history is called the Ice Age, because glaciers covered almost half of the world.
At the Bering Strait, between Alaska and Asia, the Ocean flor became grassland and formed a bridge that scientists call Berirngia. Berirngia was a cool, wet land where many kinds of animals lived.
Over many years, hunters followed these animals from Asia across Berirngia in to North America.
Movement like this, from one place to another is called migration.
Scientists believed that migration over Berirngia stopped about 10,000 years ago.
Unit 2

The First Americans
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