Causes Of Plate Movement

Question 1

The layer beneath the Earth’s crust composed of hot molten materials

Answer 1

Mantle

Question 2

The upper part of the mantle which is a soft, weak and visco-elastic layer where listhospheric plates float and move

Answer 2

Asthenosphere

Question 3

Hot, molten rocks in the mantle

Answer 3

Magma

Question 4

The earth’s crust is broken into plates that move slowly and constantly

Answer 4

Plate tectonics theory

Question 5

Current in the mantle because of the heat from the inner layers of the earth, and is the force that drives the to move around

Answer 5

Convection current

Question 6

A process by which convection currents occur in the inner layers of the earth due to differences in temperatures and densities
-hot materials RISE because they are LESS DENSE
- cold materials SINK because they are more dense

Answer 6

Mantle convection

Question 7

The weight of new material from the mantle pushes the old crusts towards the trench at the subduction zone

Answer 7

Ridge push

Question 8

The weight of the subducting plate pulls the slab/crust into the subduction zone

Answer 8

Slab pull