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?

19
Q

Do we get earthquakes at constructive plate margin?

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

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?

25
Why do we get earthquakes at destructive plate margin
Pressure exceeds friction when plates slid past
26
What landforms do we get at Collision Plate Margin
Fold Mountains(continental crust buckles and fold upwards)
27
Do we get Volcanoes at collision plate margin? Why?
No because no subduction no magma created no gap from magma to fill
28
Do we get Earthquakes at Collision Plate Margin? Why?
Yes Due to pressure between plates
29
What Landforms are formed in Conservative Plate Margin
Fault Lines(crack in earth's crust)
30
Do we get volcanoes in conservative plate margin?
No No material is melted
31
Do we get earthquakes in Conservative Plate Margin?
Yes 1)Plates stick due to friction 2)pressure builds up 3) Suddenly jolt as each other releasing seismic waves
32
Examples of Conservative Plate Margin
San Andreas Fault