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Lesson 2 Plate Tectonics And Volcanoes

May 18, 2015




  • 1. Plate names AfricanIndo-Australian Plate North American South American Eurasian Pacific Nazca Antarctic Pacific

2. Plate Boundaries. First task- To find out what happens at the 4 different plate boundaries. 3. Constructive plate boundary 4. Destructive plate boundary 5. Collision plate boundary 6. Conservative plate boundary 7. Task

  • Label the key features at the four plate boundaries.
  • Then cut them out and stick them into your books.
  • Underneath each I want a sentence to explain what is happening
    • Which way are the plates moving.
    • What happens as a result.

8. Homework.

  • To find out the date and location of a recent earthquake and volcano and the impact these had on human activity.

9. Plate definitions 10. Label this cross section of a volcano

  • Volcanic bombs, ash, lava, gases
  • Magma chamber
  • Parasitic cone
  • Crater
  • Main vent

11. Active volcano liable to erupt. 12. Dormant (sleeping) volcano a volcano which has not erupted for many years 13. Extinct volcano a volcano which has not erupted for many thousands or millions of years 14. Types of Volcano

  • Composite Volcano
  • Shield Volcano

15. 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).

16. Composite Volcanoes.

  • Occur st destructive plate boundaries.
  • Viscous (thick lava)
  • The lava cannot flow far from the vent.
  • Makes the volcano steep sided.
  • Violent eruptions due to rapidly hardeneing rock which blocks vents and allows the pressure to build.

17. Dominoes.

  • Lets test your knowledge so far.