All the earth’s continents move constantly.

Mountains and valleys are sometimes formed by this movement.

Volcanoes are often found along plate margins.

Volcanoes can lie dormant for thousands of years before exploding.

People who study volcanoes are called volcanologists.

Earthquakes occur at constructive, destructive and conservative plate margins.

The severity of earthquakes is measured using the ‘Richter Scale’.

Tsunamis occur when an area of the seabed is disturbed, or when a landslide falls into the water.

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The Restless Earth – Test it!

1. What is the diameter of the earth?

2. What is another name for the earth’s crust?

3. At its deepest, approximately how deep is the Mariana Trench?

4. What is ‘steep relief’?

5. Name one good thing about living near a volcano

6. In what country is Eyjafjallajkull?

7. In what country did the 2011 tsunami take place?

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Some top tips!

1. Print out the Test It! Questions – it will allow you
to replicate exam conditions and also allows you to
give your eyes a rest from the computer screen whilst
doing your crucial revision.
2. Make a copy of the Remember It! Section and put in
a place that you often look at. i.e. front of a journal,
next to a mirror, on a kitchen cupboard door, etc.