Tectonic plates

Question 1

The earth’s surface

Answer 1

is separated into tectonic plates.

Question 2

The core

Answer 2

Ball of solid(inner), because of a high pressure and liquid(outer) iron and nickel.

Question 3

Mantle

Answer 3

Around the core. It is semi-molten rock which moves very slowly.

Question 4

Crust

Answer 4

The outer layer of the Earth. Solid.

Question 5

Oceanic tectonic plate

Answer 5

Is thinner(5-10 km) and more dense.

Question 6

Continental tectonic plate

Answer 6

Is thicker(30-50 km) and less dense.

Question 7

Why are tectonic plates moving?

Answer 7

Because of convection currents in the outer mantle under the crust.

Question 8

Plate margins/boundaries

Answer 8

Where tectonic plates meet.

Question 9

Destructive margin

Answer 9

Two plates are moving towards each other. When plates collide, the ground is folded and forced upwards to create mountains. When oceanic and continental, volcanoes are formed.

Question 10

Constructive margin

Answer 10

When two plates are moving away from each other. Magma rises and fill the gap and cools, create a new crust.

Question 11

Conservative margin

Answer 11

Two plates are moving sideways or moving in the same direction but different speed. Crust isn’t created or destroyed.