Chemistry C1 7.1 Structure of the Earth.

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What is the structure Earth?
The Earth is made of layers called the core, mantle and crust with the atmosphere around the outside.
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Where do the Earth's limited resources come from?
Its crust, the oceans and the atmosphere.
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What is he shape and size of the Earth?
The Earth is almost spherical, with a diameter of about 12800km.
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What is the Earth's crust?
The very thin uppermost layer that varies in thickness between about 5km and 70km.
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What is the mantle?
The layer under the crust that is about 3000km thick. it goes almost halfway to the centre of the Earth, it is almost entirely solid but parts of it can flow very slowly.
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What is the core?
The innermost layer, it is about half the diameter of the Earth. It has a high proportion of the magnetic metals iron and nickel, it has a liquid outer part and a solid inner part.
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What is the atmosphere?
It is what surrounds the Earth, most of the air is within 10km of the surface and most of the atmosphere is within 100km of the surface.
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Where do all the raw materials and other resources that we depend on come from?
The crust, the oceans and the atmosphere, this means the resources available to us are limited.
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What layers of the Earth are solid?
Core (inner), mantle, crust.
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**YOU SHOULD HAVE AN IDEA OF THE SIZE OF THE EARTH AND THE RELATIVE SIZE OF ITS LAYERS**
**LOOK UP DIAGRAM OF THE STRUCTURE OF THE EARTH
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Card 2

Front

Where do the Earth's limited resources come from?

Back

Its crust, the oceans and the atmosphere.

Card 3

Front

What is he shape and size of the Earth?

Back

Preview of the front of card 3

Card 4

Front

What is the Earth's crust?

Back

Preview of the front of card 4

Card 5

Front

What is the mantle?

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