Plate Tectonics

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Plate Tectonics
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Review Questions

• List Earths layers from the outside to the
  inside of Earth.

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Review Questions

• List Earths layers from the outside to the
  inside of Earth.
• Crust (oceanic and continental)
• Lithosphere (crust and upper mantle)
• Asthenosphere (upper mantle below lithosphere)
• Mantle
• Core (outer and inner)

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• How many types of plate boundaries are there?
  Briefly describe each.

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• How many types of plate boundaries are there?
  Briefly describe each.
• Diverging plates move apart (new crust is
  created in ridges)
• Converging plates move together (old crust is
  destroyed in trenches)
• Transform plates slide past each other (most
  earthquakes here)

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• What evidence do we have of plate movement?

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• What evidence do we have of plate movement?
• Earthquakes, volcanoes, ridges, trenches,
  mountains
• Geological evidence that the continents used to
  be in different places (radioactive decay, rock
  layers, fossils etc)

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Major Plates
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Relative Ages of Ocean Crust
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Subduction Zones
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Blue Trenches Pink Ridges
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Major Plates Questions

1. Name the 7 largest plates.
2. Where are most plate boundaries found?
3. Name 5 plates that are not part of a continent.
4. Name the major plates that border the
   Mid-Atlantic Ridge.
5. Mt. Everest is in the Himalayan Mountains. What 2
   plates are colliding to form them?
6. The Andes Mountains are on the west coast of
   South America. What 2 plates form these
   mountains?
7. When plates converge what geological feature is
   formed on land? In the ocean?
8. When plates diverge what geological feature is
   formed?

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Answers

1. Pacific, African, Eurasian, Australian,
   Antarctic, North American, South American
2. Most are found in the ocean
3. Pacific, Nazca, Cocos, Scotia, Philippine, Juan
   de Fuca
4. North American, Eurasian, South American, African
5. Eurasian and Indian
6. Nazca and South American
7. Land mountains Ocean trenches
8. Mid-oceanic ridges