Restless Earth

Question 0

What is the asthenosphere?

Answer 0

The upper parts of the earth’s mantle where rocks are more fluid

Question 1

What is the hydrosphere?

Answer 1

The layer of water around the earth

Question 2

Which type of crust is thinner?

Answer 2

Oceanic

Question 3

Which type of crust is thicker?

Answer 3

Continental

Question 4

Which type of crust is more dense?

Answer 4

Oceanic

Question 5

What is the outermost layer of earths crust called?

Answer 5

The crust

Question 6

What is the order of the earths pieces going inwards?

Answer 6

The crust
The lithosphere
The asthenosphere
The mantle
Liquid core
Solid core

Question 7

Why do tectonic Plates move?

Answer 7

Because of Convection Currents.

These are caused by the heat coming from radioactivity in the core, which heats the magma. Magma closer to the Core is less dense and rises. As it rises it cools and turns over, this makes a current that pushes plates.

Question 8

What sort of Crust has Basalt in it?

Answer 8

Oceanic

Question 9

What is a Convection Current?

Answer 9

The circulation of magma caused by the heat of the core

Question 10

What is Oceanic crust made of?

Answer 10

Basalt, with no crystals.

Question 11

What is Continental Crust made of?

Answer 11

Granite, with crystals.

Question 12

What sort of crust contains small crystals?

Answer 12

Continental

Question 13

What sort of crust has granite in it?

Answer 13

Continental

Question 14

How do we know Tectonic Plates move?

Answer 14

Pangea

We know of Pangea because of identical rocks and fossils

Question 15

What is a plate boundary?

Answer 15

Where two plates meet each other

Question 16

What direction are the plates at constructive boundaries moving in?

Answer 16

Away from each other

Question 17

What landforms are created at Constructive Boundaries?

Answer 17

Volcanoes

Ridges

Question 18

Give an example of a Constructive boundary.

Answer 18

The North Atlantic Ridge

North American moving from Eurasian Plate

Question 19

What directions are plates at Conservative boundaries moving in?

Answer 19

They are moving in opposite or the same directions and rubbing against each other.

Question 20

What occurs at Conservative boundaries?

Answer 20

Earthquakes

Fracture lines

Question 21

Give an Example of a Conservative Boundary

Answer 21

The San Andreas Fault

North American and Pacific.

Question 22

What directions are plates moving in Destructive boundaries?

Answer 22

Towards each other

Question 23

At what sort of Plate boundary does Subduction happen?

Answer 23

Destructive

Question 24

What crust is involved in a Destructive boundary?

Answer 24

Both Continental and Oceanic

Question 25

Give an example of a Destructive boundary.

Answer 25

The Philippines | Between the Philippine and Pacific Plates

Question 26

Which plate is sub ducted in Destructive boundaries?

Answer 26

Oceanic, because it is more dense.

Question 27

What direction are the plates moving in a Collision boundary?

Answer 27

Towards each other.

Question 28

What is the difference between a Destructive and Collision boundary?

Answer 28

Collision involves two of the same | Destructive involves two different

Question 29

What are the features of a collision boundary?

Answer 29

Mountains | Earthquakes

Question 30

What are Fold Mountains?

Answer 30

Mountains made by the Plates pushing together and pushing up.

Question 31

What is VEI?

Answer 31

The Volcanic Explosivity Index

Question 32

What does VEI measure?

Answer 32

The destructive power of a Volcano from a scale of 1 to 8

Question 33

What is the Richter Scale?

Answer 33

The Intensity of an Earthquake.

Question 34

What does the Mercalli Scale measure?

Answer 34

How many people can observe it at the epicentre.

Question 35

What sort of volcano is produced by Basaltic Lava?

Answer 35

Shield

Question 36

What sort of volcano is produced by Andesitic Lava?

Answer 36

Composite

Question 37

What sort of Lava produces a Composite volcano?

Answer 37

Andesitic

Question 38

What sort of Lava produces a Shield volcano?

Answer 38

Basaltic

Question 39

What are the features of a Composite Volcano?

Answer 39

Violent Steep slopes Release lots of ash

Question 40

What are the features of a Shield Volcano?

Answer 40

Less Violent Gentle Slopes Fluid flows of lava

Question 41

Name a Shield Volcano.

Answer 41

Mauna Loa

Question 42

Name a Composite Volcano.

Answer 42

Mount Pinatubo.

Question 43

What are the sides of a Shield volcano like?

Answer 43

Gentle, long slopes

Question 44

What are the sides of a Composite volcano like?

Answer 44

Steep slopes

Question 45

What is a Primary Impact?

Answer 45

An impact caused immediately by the earthquake.

Question 46

What is a Secondary Impact?

Answer 46

Impacts caused by the Primary impacts or a while after the event.

Question 47

Give our example of an eruption in an LEDC.

Answer 47

Montserrat

Question 48

What is the Plates and Plate boundary at Montserrat?

Answer 48

Destructive Caribbean meets Atlantic Atlantic sub ducts under Caribbean

Question 49

When did the eruption in Montserrat happen?

Answer 49

Between 1995 and 1997

Question 50

When did the Pyroclastic flows in Montserrat happen?

Answer 50

In June and July 1997

Question 51

What were the impacts of the Montserrat eruption?

Answer 51

``` It killed 23 people 2/3 of Infrastructure was destroyed Half of the Island left The Capital-Plymouth-was destroyed It destroyed rain forests and farms ```

Question 52

Give our example of an eruption in an MEDC.

Answer 52

Mount St Helens

Question 53

What are the Plates and Boundaries at Mount St Helens?

Answer 53

Destructive The North American and Juan De Fuca The Juan de Fuca is sub ducting under the North American

Question 54

When did the eruption in Mt St Helens happen?

Answer 54

Spring 1980

Question 55

When did the major explosion happen?

Answer 55

The 18th of May in the morning.

Question 56

What were the impacts of the eruption in Mount Saint helens?

Answer 56

It caused a rock landslide that went outside the red zone It killed wildlife in forests and Spirit lake It destroyed the logging camps No major impact on the country

Question 57

What is our example of an Earthquake in an MEDC?

Answer 57

Loma Prieta, California.

Question 58

When did the earthquake in Loma Prieta happen?

Answer 58

1989

Question 59

What are the plates in Loma Prieta?

Answer 59

The San Andreas Fault The north american The Pacific

Question 60

What was the magnitude in Loma Prieta?

Answer 60

6.9 on the Richter

Question 61

How many people died in loma Prieta?

Answer 61

63

Question 62

How much did the earthquake in loma Prieta cost?

Answer 62

10 billion