Convection currents, ridge push and slab pull.

Question 1

The Earth has a hard outer layer called the _________.

Answer 1

Crust.

Question 2

The crust is broken up into large chunks called _________.

Answer 2

Tectonic plates.

Question 3

These plates move sometimes together against each other, due to things happening in the _________.

Answer 3

Mantle.

Question 4

This is because plates effectively ‘float’ on top of the _______.

Answer 4

Mantle/Magma.

Question 5

The first thing that happens is the liquid _______ is heated by the earth’s hot ________.

Answer 5

Magma, Core.

Question 6

This causes _________ ___________ in the mantle, which rise up from the core towards the _________.

Answer 6

Convection currents, crust.

Question 7

As it reaches the _________, it _________ and _________ apart, dragging the __________ with it.

Answer 7

Crust, cools, spreads, crust.

Question 8

The final outcome of this movement is the formation of _________ and ___________ and ___________ on the surface of the earth.

Answer 8

Earthquakes, volcanoes , mountains.

Question 9

Another way plates move is something called _________ _________. This happens when new ________ forms at _____ ridges, pushing ______ apart.

Answer 9

Ridge push, material, ocean, plates.

Question 10

Plates also move because of ____ ____, where a denser plate is pulled down into the ______ beneath another plate.

Answer 10

Slab Pull, mantle.

Question 11

This has caused the __________ to move over millions of years.

Answer 11

Continents.

Question 12

Slab pull is also known as __________.

Answer 12

Subduction.

Question 13

The 2 types of crust are the _______ crust and the ___________ crust.

Answer 13

Oceanic, Continental.

Question 14

The layers in order of closest to us are:
-_____
-______
-_____ ____
-_____ ____

Answer 14

Crust, Mantle, Outer core, Inner core

Question 15

A large area of land usually surrounded by water.

Answer 15

Continent.

Question 16

A prehistoric land animal that lived in what is now South America and southern Africa.

Answer 16

Mesosaurus.

Question 17

Circular movement in the mantle caused by heat that helps movement of the plates across the Earth’s surface.

Answer 17

Convection Currents.

Question 18

A place on the Earth’s crust where hot magma from inside the mantle can escape.

Answer 18

Volcano.

Question 19

The slow movement of the continents across the surface of the Earth.

Answer 19

Continental Drift.

Question 20

Huge sections of the Earth’s crust that can move with the flow of the mantle underneath.

Answer 20

Tectonic plates.

Question 21

Name given to the whole process that explains continental drift.

Answer 21

Tectonic Theory.

Question 22

The centre of our planet, made of heavy metals and as hot as the surface of the sun.

Answer 22

Core.

Question 23

The study of the Earth.

Answer 23

Geology.

Question 24

Two metals the make up the centre of the planet.

Answer 24

Iron and Nickel.

Question 25

The layer of the Earth underneath the surface layer, containing molten rock that can move.

Answer 25

Mantle.

Question 26

The name of the section of the earth’s crust on which you live on.

Answer 26

Eurasian plate.

Question 27

The gap between two sections of the earth’s crust, where most volcanoes and earthquakes happen.

Answer 27

Plate Boundary.

Question 28

The shaking of the ground due to tectonic forces.

Answer 28

Earthquakes.

Question 29

The outer layer of the earth, made of solid rock.

Answer 29

Crust.

Question 30

German scientist who first suggested the idea of continental drift.

Answer 30

Alfred Wegner.

Question 31

Name given to the supercontinent that existed 250 million years ago.

Answer 31

Pangaea.