Ice Levels Over Time
- Created by: Alice Cullen
- Created on: 04-01-17 21:08
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- The Earth has Glacial Periods and Interglacial Periods
- The earth goes through cold periods that last for millions of years called ice ages
- During ice ages, large masses of ice cover parts of the Earth's surface
- The last ice age was the Pleistocene that began around 2.6 million years ago
- During ice ages there are cooler periods called glacial periods when the ice advances to cover more of the Earth's surface - each one lasts about 100,000 years
- In between glacial periods there are warmer periods known as interglacial periods when the ice retreats to cover less of the Earth's surface - each one lasts about 10,000 years
- The last glacial period began around 100,000 years ago and ended around 10,000 y.a
- The earth goes through cold periods that last for millions of years called ice ages
- Ice Covered much more of the Earth's surface 20,000 years ago
- Since the beginning of the Pleistocene there have been permenant ice sheets on Greenland and Antarctica - ice has also covered…
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