Geography year 7

Question 1

What are the 4 different sorts of plate boundaries?

Answer 1

Collision, conservatives, destructive, constructive

Question 1

Collision

Answer 1

When two plates of the same weight and size crash together. They form a mountain

Question 2

Conservative

Answer 2

Two plates slides past each other. They scrape and it creates huge earthquakes.

Question 3

Destructive

Answer 3

When an oceanic crust crashes into an continental crust. The oceanic crust gets pushed down because of its weight.

Question 4

Constructive

Answer 4

When two plates move apart

Question 5

Volcanoes

Answer 5

When there is a gap in the earth’s crust and magma gets out. They happen in constructive and destructive plate boundaries

Question 6

Earthquakes

Answer 6

Vibrations in the earth’s crust. Happens in all PB. The biggest occur in conservative and destructive because there is loads of friction

Question 7

Active volcano

Answer 7

Can erupt any day soon

Question 8

Dormant volcano

Answer 8

Sleeping. A volcano that has not erupted recently but can erupt again.

Question 9

Extinct volcano

Answer 9

Dead. Unlikely to ever erupt again.

Question 10

Pyroclastic flow

Answer 10

Boiling hot gas rushing down the side of a volcano

Question 11

Lava

Answer 11

Boiling hot molten/melted rock

Question 12

Volcanic bomb

Answer 12

Lumps of boiling hardened lava

Question 13

Ash and gases

Answer 13

Tiny particles of dust or gas

Question 14

Oceanic crust

Answer 14

Under the sea. Thin but heavy

Question 15

Continental crust

Answer 15

Thick but light. Under a continent

Question 16

Focus

Answer 16

Where the earthquake’s starts underground

Question 17

Epicenter

Answer 17

The point on the surface which is directly above the focus

Question 18

Aftershock

Answer 18

Smaller earthquakes which happen after the main one

Question 19

Plate boundaries

Answer 19

Where two plate tectonics meet

Question 20

Convention currents

Answer 20

The heat from the core makes the magma from the mantle move in a circular way. They push the plates around.

Question 21

Seismic waves

Answer 21

The energy of the earthquake traveling out in all directions.

Question 22

Measuring earthquakes

Answer 22

Earthquakes are usually measured on the Richter scale using a seismograph and by using the mercalli scale.

Question 23

Richter scale

Answer 23

A logarithmic scale so a ‘6’ on the TS is ‘10’ times larger then a ‘5’ and ‘100’ times larger then a ‘4’.

Question 24

Mercalli scale

Answer 24

Measures the amount of damage done by the earthquake and tells us how many people have been affected by it.

Question 25

Haiti earthquake

Answer 25

Happened on the 21st of January 2010 It had a magnitude of 7 on the RS. It’s the fifth most deadly earthquake in the world so far. 220,000 people died.

Question 26

Mountain range

Answer 26

A whole chain of mountains

Question 27

Glacier

Answer 27

A large moving river of ice. They flow down over the land due to gravity.

Question 28

Erosion

Answer 28

When rock gets worn away

Question 29

Transportation

Answer 29

When rocks get moved.

Question 30

Corrie

Answer 30

A round bowl in the side of a mountain. Made by one glacier moving down eroding the rock.

Question 31

Arête

Answer 31

A sharp knife like ridge found between two corries. Made by two glaciers, one down each side.

Question 32

Pyramidal peak

Answer 32

A pointed mountain made when three or more glacier are moving down.

Question 33

Erratics

Answer 33

A bid rock that has been transported and deposited by a glacier.

Question 34

Deposited

Answer 34

When rock gets dropped back down.

Question 35

Explorer

Answer 35

Tries to conquer mountains and reach the peaks. Specialists equipment needed along with a long detailed planning and preparation.

Question 36

Which are the five layers of the earth?

Answer 36

Crust, upper mantle, lower mantle, outer core, inner core.