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Geography > The Restless Earth Part 1(19 March Assessment) > Flashcards

The Restless Earth Part 1(19 March Assessment) Flashcards

1
Q

What are igneous rocks?

A

They are formed when magma/lava cools and solidifies

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2
Q

Describe Granite

A

Rough Texture
Speckled color
pink/grey

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3
Q

Characteristics of Granite

A

Intrusive
cools slowly
large crystals

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4
Q

Describe Basalt

A

Very Hard
Dark grey
Rough and heavy
Small Glittery sparkles may be visible

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5
Q

Characteristics of Basalt

A

Extrusive
Cools quickly
small crystals

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6
Q

Explain Sedimentary Rocks

A

Are formed when loose sediment is put under extreme pressure and cements together

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7
Q

What does Sand form?

A

Sandstone

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8
Q

What does shells/bone form

A

Limestone

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9
Q

What are Metamorphic Rocks

A

Formed when rocks are altered due to heat and pressure

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10
Q

What does limestone form when altered

A

Marble

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11
Q

Describe Sanstones

A

Grains of sand
no crystal
rough

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12
Q

Describe Limestone

A

White/Yellow
Hard
Fossils

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13
Q

Describe Marble

A

Pure white

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14
Q

Describe slate

A

Dark grey
Smooth Flat

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15
Q

Examples of Constructive Plate Margin

A

Mid Atlantic ridge( A chain of undersea volcanoes)

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16
Q

Why do we get volcanoes at Constructive Plate Margin

A

Plates move away from each other
Magma moves up the gap between plates

17
Q

Why do we get Earthquakes at Constructive Plate Margin

A

As magma moves up it will break or split rocks

18
Q

Do we get volcanoes at constructive plate margin?

A

Yes

19
Q

Do we get earthquakes at constructive plate margin?

A

Yes

20
Q

What landform are formed during destructive plate margin?

A

Ocean trench
Fold mountains

21
Q

Examples of Destructive Plate Margin

A

Peru Chile Trench

22
Q

Do we get volcanoes in Destructive Plate Margin

A

Yes

23
Q

Why do we get volcanoes at destructive plate margin?

A

Oceanic plate subducts and melts. magma is less dense and rises up

24
Q

Do we get Earthquakes at destructive plate margin?

A

Yes

25
Q

Why do we get earthquakes at destructive plate margin

A

Pressure exceeds friction when plates slid past

26
Q

What landforms do we get at Collision Plate Margin

A

Fold Mountains(continental crust buckles and fold upwards)

27
Q

Do we get Volcanoes at collision plate margin? Why?

A

No
because no subduction
no magma created
no gap from magma to fill

28
Q

Do we get Earthquakes at Collision Plate Margin? Why?

A

Yes
Due to pressure between plates

29
Q

What Landforms are formed in Conservative Plate Margin

A

Fault Lines(crack in earth’s crust)

30
Q

Do we get volcanoes in conservative plate margin?

A

No
No material is melted

31
Q

Do we get earthquakes in Conservative Plate Margin?

A

Yes
1)Plates stick due to friction
2)pressure builds up
3) Suddenly jolt as each other releasing seismic waves

32
Q

Examples of Conservative Plate Margin

A

San Andreas Fault

Geography (10 decks)

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