Chapter 1 The Structure Of The Earth Flashcards

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0
Q

I am solid rock
I cover the surface of the earth
I am thicker when I am on land than at sea
I am not one piece
I am divided into sections called plates
I am similar to the thickness of the skin on an apple
What am I?

A

The crust

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1
Q

Name the four layers of the earth in order starting from the outside

A

Crust, mantle, outer core, inner core

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2
Q

I am composed of molten magma
I am under the crust
I flow in currents
What am I?

A

The mantle

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3
Q

I am very hot, between 3000 and 5000 degrees
I am in the centre of the earth
I am made mostly out of iron
I am solid in the centre
I am divided into inner …… and outer ……
What am I?

A

The core

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4
Q

The earths crust is dived into …….

A

Plates

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5
Q

Explain the term plate tectonics

A

The study of plate movements and their effects

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6
Q

What is the effect of plates sliding past each other

A

Earthquakes

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7
Q

What are the effects of plates separating

A

Volcanoes, mid ocean ridges, new islands

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8
Q

What are the effects of plates colliding

A

Earthquakes, volcanoes, fold mountains

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9
Q

Plates separating is a ………… plate boundary

A

Constructive

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10
Q

Plates colliding is a …………. plate boundary

A

Destructive

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11
Q

What causes plate to move?

A

Convection currents

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12
Q
I am hotter the closer I am to the core
I rise when I am hot
I fall when I cool down
I cause the plates to move
What is this process called?
A

Convection currents

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13
Q

What was the huge continent before it broke up called?

A

Pangea

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