Science - Chemisty - C2

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  • Created by: louhone
  • Created on: 13-05-15 12:14
What is the structure of the eath? Starting from the middle.
Inner Core, Outer Core, Mantle, Crust, Lithoshpere.
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What is the lithoshpere made of?
It is made of tectonic plates, it is relatively cold and rigid and very thick.
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What are convection currents?
They are the movement of tectonic plates.
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What does the Earths core transfer?
The Earths core transfers engery, this is why the tempurature of the mantle increases with depth.
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Why is the Plate Tectonic theory now widely accepted?
There is now a wide range of evidence supporting the theory, and it has been discussed and tested by many scientist.
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Why does magma rise?
The reason for magma rising because it is less dense then the crust.
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What does magma cause? And why is there different types of eruptions
Volcanoes, and there are different type of eruptions because there is different types of compostion.
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What do geologist find when studying volcanoes?
They can forecast future eruptions and reveal more about the earth structure.
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What rock is formed by lava? And what different types of lava cause different types of this rock?
Igneoud rock is formed by lava, iron-rich basalt rock comes from runny lava, sillica- rich rhyolite rock comes from thick lava.
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How do you test the hardness of rocks? Name the rocks from the hardest to the weakest.
You rub two materials together, Igenousis the hardest, then metamorphic, then sedimentary.
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What is the building materials of these raw materials? Clay, Limestone and Clay, Sand, Iron ore, Aluminion ore
Clay-Brick, Limestone&Clay-Cement,Sand-Glass, Iron ore-Iron, Aluminium Ore-Aluminium.
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How are sedimentary rocks made?
Sedimentary rocks are formed by soft sediments being compressed and cemented together.
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How are metamorphic rocks made?
Metamorphic rocks are formed when limestone changed heat and pressure.
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How are igneous rocks made?
Igneous rocks are formed when magma cools and solidifies.
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What is thermal decomposition?
Thermal decomposition is a reactiob where one substance breaks down on heating to give at least two new substances.
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Why is reinforced concrete a composite material?
It is a composite material because it contains at least two materials that can still be distinguished.
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Other cards in this set

Card 2

Front

What is the lithoshpere made of?

Back

It is made of tectonic plates, it is relatively cold and rigid and very thick.

Card 3

Front

What are convection currents?

Back

Preview of the front of card 3

Card 4

Front

What does the Earths core transfer?

Back

Preview of the front of card 4

Card 5

Front

Why is the Plate Tectonic theory now widely accepted?

Back

Preview of the front of card 5
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