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Lesson 3 Types Of Volcanoes
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Lesson 3 Types Of Volcanoes

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  • The three types of volcanos are the shield the cinder cone and the the composite. the shield volcano is the boiigest the cinder cone one os made of pyroclasticsive eruptions and the composite one is sometimes called the stratovolcanoes
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  • 1. Types of Volcano Starter- Dominoes.
  • 2. Active volcano – liable to erupt.
  • 3. Dormant (sleeping) volcano – a volcano which has not erupted for many years
  • 4. Extinct volcano – a volcano which has not erupted for many thousands or millions of years
  • 5. Types of Volcano
    • Composite Volcano
    • Shield Volcano
  • 6. Shield Volcano
    • Occur at Constructive Plate Boundaries.
    • Runny Lava that flows along way from the main vent.
    • Gives the volcano gentle sides.
    • Shield volcanoes almost never erupt violently due to the lava running free (no rocks).
  • 7. Composite Volcanoes.
    • Occur at destructive plate boundaries.
    • Viscous (thick lava)
    • The lava cannot flow far from the vent.
    • Makes the volcano steep sided.
    • Violent eruptions due to rapidly hardening rock which blocks vents and allows the pressure to build.
  • 8. So why do people live near them?
    • Watch the following movie about why people live near volcanoes.
    • Now we have seen the video make a list of the advantages of living near a volcano.
  • 9. 1. How can a Pyroclastic flow cause damage? 4. What might happen to Planes? 6. What impact would a mud flow have? 2. How would trees be effected? 3. What might happen to the sun? 7. What damage could a lava flow do? 8. What would cause roofs to collapse? 9. What could suffocate you? 5. What might happen to crops?