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Layers of the Earth

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Rohan Gupta

on 29 March 2015

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Transcript of Layers of the Earth

The Layers of the Earth
Inner Core
The Inner Core is the solid, dense center of Earth.

It is about 6,380 kilometers beneath the Earth's surface.

The core's surface temperature estimates to be around 6,000 C (10,800 F), which is as hot as the surface of the sun.
by Graysen K
and Rohan G
Outer Core Facts
The outer core of the Earth is a liquid layer and is about 2,300 km thick.

It composed of iron and nickel that lies above Earth's inner core and lies below the mantle.

Its outer boundary lies 2,890 km beneath Earth's crust.
The core is one of the 3 physical layers of the Earth.

It consists of the Inner and Outer cores.

The core is partially solid and partially liquid. The liquid layer about 2,266 kilometers thick. It is made of iron and nickel. It is above the Earth's solid inner core and below it's mantle.

The inner core of the Earth is a solid sphere about 1,216 km in radius. It is believed to be an iron–nickel alloy. It is as hot as the surface of the Sun.
The asthenosphere is the weak deforming region of the upper mantle of the Earth.

It lies below the lithosphere, at depths between roughly 80 and 200 km.

The asthenosphere is mostly solid, although some parts could be melted.
The mantle is a layer between the crust and the outer core
It is about 2,900 kilometers thick and consists of 84% of Earth's volume.
The mantle is for the most part a solid but behaves like a liquid.
The mesosphere is under the lithosphere
and the asthenosphere, but above
the outer core
It's upper boundary is defined as the sharp increase in seismic wave velocities and density at a depth of 660 kilometers.
"Mesosphere" derives from "mesospheric
The lithosphere includes the crust and the uppermost mantle.
It is the outer most shell of rocky planets, such as earth.
Core Facts
It is subdivided into tectonic plates.
The crust is the outermost shell of a rocky planet.
It is made of the oceanic crust and the continental crust
The crust occupies less than 1% of Earth's volume
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