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What is inside the Earth?

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What is inside the Earth? The Earth is not solid rock all the way through. It has an inner core of solid rock, which is mostly iron.

The temperature here is probably around 4,500C. Beyond the inner core is a layer of liquid rock, called the outer core, which extends about halfway to the surface. Beyond this is a thick layer of rock called the mantle, which is partly molten and runny.

The thinnest layer, or crust, is on the Earth's surface, floating on the red-hot liquid mantle. The crust is about 6 km thick under the oceans, but 30 to 40 km thick beneath the land.

The Earth's crust is the thinnest of the layers. It floats on the semi-liquid mantle beneath. The inner core is probably made of solid iron.


Tags: earth, rock



Category: Astrology  - ( Astrology Archive)

Date Added: 09 December '11


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