1.4 - Alfred Wegener And Tectonic Plates

Question 1

The crust

Answer 1

Solid, thin and rocky

Question 2

Mantle

Answer 2

Properties of solid, flows slowly, convection currents

Question 3

Outer core

Answer 3

Liquid nickel and iron

Question 4

Inner core

Answer 4

Solid nickel and iron

Question 5

Lithosphere

Answer 5

The crust and part of the mantle below

Question 6

What’s in the lithosphere ?

Answer 6

Minerals

Question 7

Wegners theory

Answer 7

The continents were once connected called Pangea, They slowly moved apart, Mountains are formed when the edge of a drifting continent collided with another

Question 8

Evidence for Wegeners theory

Answer 8

Continents look like they fit together like a jigsaw, there are similar rock patterns and fossils found on both sides of the Atlantic Ocean

Question 9

Continental drift

Answer 9

Tectonic plates moving a few centimetres per year caused by convention currents in the mantle

Question 10

Direction of destructive plate boundaries

Answer 10

Towards

Question 11

Direction of constructive plate boundaries

Answer 11

Apart

Question 12

Direction of conservative plate boundaries

Answer 12

Slide past

Question 13

Destructive plate boundary

Answer 13

The denser plate gets pushed down, forms magma

Question 14

Constructive plate boundary

Answer 14

Magma rises and cools to fill gap, new rock formed

Question 15

Result of a conservative plate boundary

Answer 15

Earthquake

Question 16

Result of a destructive plate boundary

Answer 16

Volcano or mountains