Year 10 Science — Continental Drift & Plate Tectonics Revision Answers

Teacher Marking Sheet / Answers

1.

A supercontinent where all Earth’s continents were once joined together.


2.

Alfred Wegener


3.

The idea that continents slowly move over time.


4.

Any two:

  • matching coastlines
  • fossil evidence
  • rock/mountain evidence
  • climate/glacial evidence

5.

He could not explain how continents moved.


6.

Plate tectonics.


7.

Large pieces of Earth’s crust/lithosphere.


8.

Mantle convection / convection currents in the mantle.


9.

  • crust
  • mantle
  • core

10.

Mantle.


11.

Movement of hot material in the mantle caused by heat inside Earth.


12.

Divergent boundary.


13.

Convergent boundary.


14.

Transform boundary.


15.

One tectonic plate being forced beneath another.


16.

Any two:

  • earthquakes
  • volcanoes
  • tsunamis

17.

Magma is underground; lava is on Earth’s surface.


18.

Formation of new ocean crust at mid-ocean ridges as plates move apart.


19.

Focus = underground starting point
Epicentre = point on Earth’s surface directly above the focus


20.

Laurasia and Gondwana


Quick Self-Assessment Guide

ScoreUnderstanding
18–20Excellent
15–17Strong
11–14Developing
0–10More revision needed

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