Chapter 1- Earth Structure and Plates

Question 1

What are the 4 layers of the earth?

Answer 1

Crust
Mantle
Outer core
Inner core

Question 2

What is the crust made of?

Answer 2

Solid rock

Question 3

Is continental or oceanic crust thicker?

Answer 3

Continental

Question 4

The crust is divided into ______

Answer 4

Plates

Question 5

The mantle is composed of ____________________

Answer 5

Molten magma

Question 6

Magma in the mantle flows in ______________________

Answer 6

Convection currents

Question 7

What ways can plates move in relation to each other?

Answer 7

Slide past
Collide
Separate

Question 8

Define plate tectonics.

Answer 8

The study of plate movements and their effects

Question 9

Define plate boundaries.

Answer 9

The lines or edges where plates meet

Question 10

What is the slow movement of plates called?

Answer 10

Continental drift

Question 11

Study the plate map pg 2

Answer 11

Ok

Question 12

_________________ cause plates to move

Answer 12

Convection currents

Question 13

Describe the process of convection currents.

Answer 13

Magma heated by core
Hot currents rise and join or separate under crust
->plate collide or separate

Question 14

What is the core made up of?

Answer 14

Mostly iron

Question 15

The core is very hot -between ______ and _______ degrees C

Answer 15

3000

5000

Question 16

The core is _______ in the centre

Answer 16

Solid