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Physical Environment > Rock |
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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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Most of the rocks we see on Earth today are formed from the lightest atoms in the Earth: oxygen, silicon and aluminum. These make the Earth's crust.
Sometimes rocks from the mantle are carried up to the surface. These consist of oxygen, silicon and magnesium. |
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Physical Environment > Rock |
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Basic Information |
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