Download Plate tectonics test Year 8

Year 8 Unit Test
Plate Tectonics: plates, earthquakes and volcanoes
MARK SCHEME
1. Name the four layers of the earth. (4)
Crust, mantle, inner/outer core
2. Describe the characteristics of the mantle. (2)
Hot, thickest layer, liquid, viscous, convection currents. Any 2.
3. Look at the following map.
a) What plate is Britain on? (1)
Eurasian
b) Name two plates that are moving apart from each other. (2)
Eurasian/N.Am; Pacific/Nazca etc
c) What is this type of plate boundary called? (1)
Constructive
d) Name two plates that are crashing into each other. (2)
Nazca/S.American etc
e) Using a diagram, explain how the USA and the UK are moving apart from each other (5)
Must use diagram, not annotated map. Convection currents – plates move apart –
magma rises – cools – forms new crust
4) Choose the correct answer to the questions from the four options below it e.g. a = 1, 2, 3 or
4. (3 marks)
a) A scale that measures the strength of an earthquake
1. Richter
2. Magnitude
3. Epicentre
4. Focus
b) The point at where the earthquake originates
1. Richter
2. Magnitude
3. Epicentre
4. Focus
c) A machine that measures the strength of earthquakes
1. Seismograph
2. Magnitude
3. Epicentre
4. After-shock
5) Here are some descriptions of earthquakes. Choose which magnitude on the Richter scale
you think goes with each description. (4 marks)
a) Windows Shatter and break 6
b) People not even certain there has been an earthquake 2
c) Light fittings sway and ornaments fall off shelves 4
d) Buildings collapse and bridges are toppled over 8
Magnitudes to choose from:
2
4
6
8
6) Look at the following diagram.
a) What type of boundary is this? (1)
Destructive
b) Explain how a volcano forms here. (5)
Convection – plates move together – subduction (relative density) – pressure/heat –
magma is forced upwards
c) Name two other physical effects that are caused at this plate boundary (these can include
landforms and natural disasters). (2)
tsunami, mountains, earthquakes, trenches etc
7) For either an earthquake or volcanic eruption you have studied (not both), write a short
script for a news broadcast including as many geographical details as possible about the actual
event. Minimum ½ page. (8)
8 good geographical points – process, impacts, responses. Credit balance if not 8
discrete points. NB must be a real event.
Total marks: 40