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Geography > Structure Of Earth > Flashcards

Structure Of Earth Flashcards

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1
Q

How does density help us?

A

It can help us figure out the structure of earth

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2
Q

What can and cant pass through a rock?

A

Light cant

Shockwaves from earthquake can

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3
Q

What happens to shock waves when they pass through a rock?

A

They change speed and course as the rock changes

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4
Q

How does this tell us about the structure?

A

They probe the rock down into the interior and measure how long the waves take to get from the earthquake to the points of earth.

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5
Q

What are the layers of earth?

A 
Crust
Mantle
Outer core
Inner core
Mohoplane
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6
Q

What is the largest hole and how deep and where?

A

Kola peninsula
12km
Ussa

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7
Q

What is the most common rock?

A

Granite

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8
Q

What makes up granite?

A

Silicon and aluminium

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9
Q

What rock is in ocean?

A

Basalt - made up of iron aluminum and silicon

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10
Q

What are periodites?

A

Make their way up to surface from mantle

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11
Q

What are meteorites and how many and explain?

A

Left over from meteor
Stony- mantle
Matalic- core

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12
Q

What is sima?

A

Oceanic crust rocks

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13
Q

What is sial?

A

Continental crust rocks

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14
Q

What are the 3 types of rock and how are they formed?

A

Igneous- liquid rock and magma
sedimetric- withered and decimposed
Metamorphic- igneous and sedimetric forced together by pressure and temperature

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15
Q

What is the origin, characteristics and examples of rocks?

A

Ignious - magma- basalt and granite
Sedimetric- compressed layers of particles - linestone and sandstone
Metamorphic- ignious and sedametric- ganise marble

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16
Q

Explain how rocks help each other

A

Igneous rock is pressured and given heat it becomes a metamorphic rock. When metamorphic is weathered and broken down it becomes soil. Same for sedimetary?

17
Q

What is coal used for?

A

Electricity

18
Q

What is limestone used fo?

A

Cement

19
Q

What is shale used for?

A

Bricks and cement

20
Q

What is basalt used for?

A

Minerals and aggregate

21
Q

What is granite used for?

A

Construction

22
Q

What is conglomerate used for?

A

Construction industry

23
Q

What is the density of water and earth?

A

1 g/cm

5.5 g/cm

Geography (3 decks)

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