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Earthquakes and Volcanoes 02
This photo shows a geyser which is heated underground water that rises to the surface under extreme pressure.

Earthquakes and Volcanoes 02

Dormant and extinct volcanoes still shape our world. This KS3 Geography quiz helps you explore eruptions, hazards and how people live with active volcanic landscapes.

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Fascinating Fact:

A volcano that has not erupted for a long time but might erupt again is described as dormant, while an extinct volcano is not expected to erupt.

In KS3 Geography, you learn how different types of volcano behave over time. You explore how active, dormant and extinct volcanoes are monitored and how eruptions affect people and the environment.

  • Active volcano: A volcano that is erupting now or has erupted recently and is likely to erupt again.
  • Dormant volcano: A volcano that has not erupted for a long time but could erupt in the future.
  • Extinct volcano: A volcano that is not expected to erupt again because its magma supply has stopped.
What is the difference between active, dormant and extinct volcanoes?

An active volcano erupts now or in recent history, a dormant volcano has not erupted for a long time but may do so again, and an extinct volcano is not expected to erupt.

How do scientists know if a volcano is dormant or extinct?

Scientists study past eruptions, gas emissions, earthquakes and changes in the shape of the volcano. If there has been no activity for a very long time, it may be classed as extinct.

Why is it important to monitor volcanoes in Geography?

Monitoring volcanoes helps predict possible eruptions, warn people in danger zones and plan evacuations. This can reduce deaths, injuries and damage to homes and services.

1 .
Mauna Loa is a volcano in which American state?
Alaska
Hawaii
Montana
New Mexico
Hawaii has a national park called 'Volcanoes'
2 .
An earthquake can be measured on what scale?
Reuter
Richter
Richthofen
Rickman
At the time of writing this quiz, the world's strongest recorded earthquake was magnitude 9.5. It occured in the Pacific Ocean near Chile in 1960
3 .
Large rocks thrown from a volcano have what name?
Bombs
Bricks
Lava lumps
Missiles
They can be thrown hundreds of feet in the air and are very dangerous to people and buildings near to an eruption
4 .
Which ocean has a ring of earthquakes and volcanoes around its edge?
Arctic
Atlantic
Indian
Pacific
Known as the 'Pacific Ring of Fire'
5 .
Earthquakes are most likely to happen where?
In the centre of plates
Near plate edges
Under the highest mountains
Where major rivers enter oceans
The edges of plates are very unstable areas - rocks don't move past each other very easily!
6 .
What form does the mantle take?
Gas
Ice
Semi-liquid
Solid rock
Currents in the mantle are thought to be what move the crustal plates
7 .
How can you tell that South America and Africa were once joined?
America and Africa both begin and end with 'a'
By the shape of their coastlines
The native people look alike
They both have major deserts
They split apart as the earth's plates moved, forming the Atlantic Ocean
8 .
Which layer is immediately below the earth's crust?
Core
Horizon
Mantle
Margin
The mantle is a much thicker layer than the crust
9 .
A volcano not expected to erupt again is called what?
Dead
Extinct
Idle
Obsolete
All the volcanoes in the British Isles are extinct. Phew!!
10 .
Heated underground water rising to the surface under huge pressure is a...?
Geezer
Geyser
Giza
Gyeeser
Probably the best known geyser is 'Old Faithful' which is in Yellowstone National Park in the USA
You can find more about this topic by visiting BBC Bitesize - Disasters and responses

Author:  Jan Crompton (KS3 Geography & History Teacher, Professional Quiz Writer)

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