(vii) The San Andreas fault line is found in California. (viii) Ireland is located on the Eurasian Plate. (ix) Plates can only separate or collide. (x)
Convection Currents
5. The movement of magma in the mantle causes the movement of the Earth’s crust above. Using the numbered diagram below, describe how this movement takes place. Number 1 has been completed for you.
Remember!
The verb in the question is asking you to ‘describe’ – this means to write about what it is like. You should give plenty of detail. You can use words and sketches to do this.
GeoSkill
1 2
The core heats the magma found above. As the magma heats, it rises slowly upwards towards the crust.
As the magma reaches the crust, it then …
You may be presented with a diagram in the exam that you are unfamiliar with. The information can be presented in many ways. Look carefully at labels and titles: these will help you to understand what is shown.
Exam Hint 3 Convection currents move in …
Some key terms to help you in this answer:
4 The plates above very slowly begin to …
● Cools ● Sinks ● Cycle ● Circular movement ● Dragged apart (separate) ● Pushed together (collide) ● Sliding
1 THE EARTH 3
False
Ireland has been in its current location for 250 million years.