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Physical Environment > Earth Structure |
This site tells the story of the history of the universe. Click Earlier and Later to follow the story. Note: Many facts have been simplified to make them easier to understand. |
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Inside the hot young Earth the heavy atoms such as iron were able to sink downwards to the center, forming a liquid metallic core of iron and nickel, possibly with a solid core at the very center. The central temperature is around 4,000°C.
The lighter atoms, such as silicon, floated upward around the outside of the core and formed the mantle.
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Physical Environment > Earth Structure |
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Basic Information |
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