Difference between revisions of "Earth"

Revision as of 13:31, 2 October 2018

The Earth is the third planet form the sun and the home planet of the Human species.

The Earth is the only planet known to have living creatures on it.

The Earth has one moon called The Moon.

The Earth is just the right distance from The Sun for water to be a liquid.

The Earth is the third planet form the sun and the home planet of the Human species.


A diagram showing the layers of the Earth.

Crust: The top layer of the Earth is called the Crust. It is made of rocks but two thirds is covered in a layer of water.
Mantle: The layer under the Crust is called the Mantle. It is made of rock that is under such a high pressure that it behaves plastically.
Outer Core: The Outer Core is a liquid layer below the Mantle.
Inner Core: Underneath the Outer Core is the Inner Core at the very centre of Earth. It is a solid sphere.

The different layers of Earth are made of different materials.

Crust - The most common chemical elements in the Crust are Oxygen (46.6%), Silicon (27.7%), Aluminum (8.1%), Iron (5.0%), Calcium (3.6%).
Mantle - The Mantle is mostly made of Silicate rocks.
Outer Core - The Outer Core is mostly made of liquid Iron and Nickle.
Inner Core - The Inner Core is mostly made of solid Iron and Nickle.

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 *[[Inner Core]]: Underneath the [[Outer Core]] is the [[Inner Core]] at the very centre of [[Earth]]. It is a [[solid]] [[sphere]].
-===Composition of Earth===
+===Composition of the Earth===
 The different layers of [[Earth]] are made of different materials.
 *[[Crust]] - The most common chemical elements in the [[Crust]] are [[Oxygen]] (46.6%), [[Silicon]] (27.7%), [[Aluminum]] (8.1%), [[Iron]] (5.0%), [[Calcium]] (3.6%).