The Ice Ages were periods of extreme cold that covered large parts of Europe, Asia, and North America in thick ice sheets around 100,000 years ago. As the glaciers grew, sea levels dropped and exposed land bridges connecting continents like Asia and North America over what is now the Bering Strait. Humans had to adapt to the harsh Ice Age conditions to survive, such as enriching their diets with fat.

1. What is an Ice Age?
6th Grade World History

2. Ice Age
The Ice ages were long periods of
extreme cold that affected all of
Earth. The most recent Ice Age
began about 100,000 years ago.
Thick sheets of ice moved across
large parts of Europe, Asia and
North America. As the ice sheets,
or glaciers, grew larger, the water
level of the oceans was lowered.
The low sea levels exposed a strip
of dry land connecting the
continents of Asia and North
America (Alaska). This strip of land
was known as a land bridge.

3. The Bering Strait
The land bridge that existed between
Asia and North America is now the
Bering Strait.

4. How did the Ice Ages affected humans?
Ice Age conditions posed a grave threat to human life. To survive,
humans had to adapt. One way they adapted they diets was by
enriching meals with fat.
How do you think this affected humans?