Tectonic hazards (Seneca)

Question 1

The core is in the centre and split into 2 layers:

Answer 1

• Inner metallic core (solid).
• Outer core (liquid).

Question 2

The —— is the hottest part of the Earth.

Answer 2

core

Question 3

The Earth has 3 layers:

Answer 3

core, mantle, crust.

Question 4

The mantle surrounds the …

Answer 4

core

Question 5

The mantle consists of …

Answer 5

semi-molten rock.

Question 6

The crust is a …

Answer 6

very thin outer shell of the Earth.

Question 7

The ——- is the layer we live on.

Answer 7

crust

Question 8

The crust is between —— km thick.

Answer 8

5-100

Question 9

The crust is floating on the …

Answer 9

semi-solid rock mantle.

Question 10

The crust is broken into large pieces called …

Answer 10

tectonic plates

Question 11

There are 2 kinds of tectonic plates:

Answer 11

• continental plate
• oceanic plate

Question 12

Oceanic plates are …

Answer 12

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

Question 13

Continental plates are …

Answer 13

thicker, older and lighter, so they do not sink (subduct).

Question 14

Plate boundaries and ———— are the same thing.

Answer 14

plate margins

Question 15

Convection currents happen in the …

Answer 15

upper mantle

Question 16

The core is hot and heats molten (melted) rock. This heated rock rises and hits the …

Answer 16

underside of the plate.

Question 17

When heated molten rock rises, the molten rock drags the …

Answer 17

tectonic plate that is on top of the mantle with it.

Question 18

When heated molten rock rises, the molten rock drags the tectonic plate that is on top of the mantle with it. This means some plates are …

Answer 18

being pushed apart and some are being dragged together.

Question 19

What do we call the currents that are found in the upper mantle of the Earth?

Answer 19

Convection currents

Question 20

The 3 main types of plate margin are :

Answer 20

destructive, constructive and conservative margins.

Question 21

At conservative plate margins, plates are …

Answer 21

sliding past each other.

Question 22

At conservative plate margins, plates are sliding past each other.
The plates are made of rock that has jagged edges so they …

Answer 22

catch and snag against one another.

Question 23

In Conservative plate margins, —————- between the plates builds until the plates can’t take the stress.

Answer 23

Friction and pressure

Question 24

In Conservative plate margins, They ———- , which can cause both plates to move and, as a result, the ground may shake (earthquake).

Answer 24

slip past each other

Question 25

In Conservative plate margins, They slip past each other, which can cause both plates to move and, as a result, the ground may …

Answer 25

shake (earthquake).

Question 26

At constructive plate margins, the plates …

Answer 26

move apart (diverge).

Question 27

At Constructive plate margins, The convection currents …

Answer 27

diverge (push apart) and cause a gap to form between the plates.

Question 28

At Constructive plate margins, Magma rises up to …

Answer 28

fill the gap that is created between the 2 plates.

Question 29

The oceanic plate slides beneath the ——– plate.

Answer 29

continental

Question 30

At a destructive plate margin two plates are …

Answer 30

moving towards one
another.

Question 31

An example of a destructive plate margin is …

Answer 31

Nazca Plate
South American Plate

Question 32

In conservative plate margins, there is no volcanic activity because …

Answer 32

there is no magma.

Question 33

An example of a constructive plate margin is …

Answer 33

Eurasian Plate
North American plate

Question 34

Constructive plate margins are between …

Answer 34

Two continental plates

Question 35

Destructive plate margins are between …

Answer 35

Oceanic plate
Continental plate