Topic 1: Tectonic Plates

Question 1

What is the structure of the earth?

Answer 1

Like an onion of 4 main layers

Question 2

What theory did Alfred Wegener discover?

Answer 2

The Theroy of continental drift

Question 3

What is the theory of the Continental drift?

Answer 3

How the earths continents have moved over geological time

Question 4

What are some of the evidiences to support Alfred Wegner theroy?

Answer 4

The Jigsaw Fit
convection currents
Fossil theroy
palaeomagnetism

Question 5

What is meant by the jigsaw fit?

Answer 5

All the continets fit like a jigsaw

Question 6

What is meant by convection currents in Alfred Wegners theory?

Answer 6

There are convection currents in the mantle moving plates apart

Question 7

What is meant by Fossil Theory in Alfred Wegners theory?

Answer 7

Similar fossils are found across different continents

Question 8

What is meant by palaeomagnetism in Alfred Wegners Theory?

Answer 8

the study of magnetic rocks to record the history of the magnetic field.

Question 9

What are the names of the major plate boundries?
Clue: Asian PE

Answer 9

African
South American
Indo-Australian
Antarctic
North American
Pacific
Eurasian

Question 10

What are the two different tectonic plates?

Answer 10

Continental plates and oceanic plates

Question 11

What are continental plates?

Answer 11

Continental plates are thicker, older and lighter, so they do not sink

Question 12

What are oceanic plates?

Answer 12

Oceanic plates are thinner, younger, and denser so they can sink (subduct) under another plate.

Question 13

What is a plate margin (boundary)?

Answer 13

the location where 2 tectonic plates meet or sit next to each other

Question 14

What are the 3 different plate boundarys?

Answer 14

Conservative / transform
Constructive / divergent
Destructive / convergent

Question 15

What movement occurs at a constructive plate boundary?

Answer 15

When two tectonic platers move away from each other

Question 16

Where would you normally find a constructive plate boundry

Answer 16

Under the sea

Question 17

What natural disaster happens at constructive plate boundarys?

Answer 17

Volcanoes and weak earthquakes

Question 18

What movement occurs at a destructive plate boundary? (One oceanic plate and one continental plate)

Answer 18

Tectonic plates move toward each other and the oceanic subducts under the continental

Question 19

What natural disaster happens at a destructive plate boundary? (One oceanic plate and one continental plate)

Answer 19

Intense volcanoes and earthquakes

Question 20

What movement occurs at a destructive plate boundary? (Two continental plates)

Answer 20

Towards each other creating fold mountains due to the pressure

Question 21

What natural diaster happens at a destructive plate boundary? (Two continental plates)

Answer 21

Earthquakes

Question 22

What movement occurs at a conservative plate boundary

Answer 22

Continental plates slide past each other and get stuck

Question 23

What natural diaster happens at a conservative plate boundary?

Answer 23

An intense Eathquake

Question 24

What were the effects of the Haitain disaster?

Answer 24

It impacted them socially, economically, politically and environmentally

Question 25

What does socially include?

Answer 25

Peoples quality of life (transport, health, homes , education)

Question 26

What does economically include?

Answer 26

Wealth (jobs, income, tax, bussiness)

Question 27

What does politically include?

Answer 27

Affects government decisions

Question 28

What does environmentally include?

Answer 28

The enviornment

Question 29

Where is the focus?

Answer 29

Where the earthquake happens

Question 30

Where is the epicentre

Answer 30

The point on the ground where the earthquake happens

Question 31

What happened in Haiti?

Answer 31

A richter scale 7 earthquake

Question 32

What were the consequences of the haiti earthquake?

Answer 32

Many people died and were injured Inmates escaped The government had no control Most homes and buildings collapsed

Question 33

How do tsunamis form?

Answer 33

An earthquake or volcano under water

Question 34

What is the Most common tsunami formation?

Answer 34

Destructive boundary earthquakes

Question 35

What is a wave?

Answer 35

Energy travelling through water

Question 36

What happends after an earthquake happens under water? (Tsunami)

Answer 36

A wave shoots up from the focus and travels to the nearest shore at a very high speed

Question 37

Why does a tsunami go from about 3m to 100m

Answer 37

The converge (merge) together because of the shallower water

Question 38

Example of a tsunami?

Answer 38

The indian Ocean Tsunami in 2004

Question 39

What is one way you csn predict a tectonic hazard?

Answer 39

Using Seismographs to measure the earths temors leading up to a volcano

Question 40

What can you do to prepare for a tectonic hazrd?

Answer 40

Make earthquake proof buildings

Question 41

What are the four main layers of the earth

Answer 41

the crust the mantle the outer core the inner core

Question 42

Which layer or the earth is thickest?

Answer 42

The mantle

Question 43

Which layer of the earth is the hottest?

Answer 43

The inner core

Question 44

True or false The inner core of the earth is a liquid

Answer 44

False

Question 45

Which tectonic plate do we live on?

Answer 45

The eurasian plate

Question 46

Where is an example of a divergent (constructive) plate boundary?

Answer 46

Iceland

Question 47

Where is an example of a convergent (destructive) plate boundary?

Answer 47

Himalayas

Question 48

What will happen at a convergent (destructive) plate boundary?

Answer 48

Fold mountains

Question 49

What does pyroclastic flow mean?

Answer 49

Fast-moving currents of hot gas and rock

Question 50

What plate boundry and how did the 2004 indian ocean tsunami happen?

Answer 50

Convergent (destructive) underwater earthquake

Question 51

Which country was the most affected by the indian ocean tsunami?

Answer 51

Indonesia

Question 52

Why do people live in volcanic areas?

Answer 52

Selling ash