Earth Structure, Tectonics Quiz

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Across
  1. 3. The Andes mountains are formed at the margin of the South American and ______ plates.
  2. 5. These mountains are formed at the margin of the Indo-Australian and Eurasian plates.
  3. 6. The two types of plate are continental and ______________.
  4. 9. The process that transfers heat outwards from the center of the Earth is called _______.
  5. 10. Type of plate boundary where subduction zones happen.
  6. 12. The Earth's mantle is so hot that it is ___________.
  7. 13. The name of the solid center of the Earth.
  8. 14. The name given to molten rock in the Earth´s mantle.
  9. 15. The center of the Earth is _________ than the surface due to radioactivity and outward cooling.
  10. 16. The Earth is around 4 __________ years old.
  11. 17. The location of origin of an earthquake at the surface is known as the ____________.
  12. 19. At a conservative plate boundary, plates may move in the same direction at a different ________.
Down
  1. 1. These plates are NOT normally involved in a collision boundary.
  2. 2. A 7 magnitude earthquakes is ___________ times greater than a 6 magnitude earthquake.
  3. 4. The solid surface of the Earth is called __________.
  4. 7. Type of plate boundary where new crust is formed as plates separate.
  5. 8. These events occur mainly on destructive and conservative plate boundaries.
  6. 11. The name of the scale to measure earthquake magnitude.
  7. 18. A buildup of ____________ makes destructive boundaries´earthquakes and volcanoes normally more violent.
  8. 20. the gradual movement of plates around the Earth's surface is known as continental _____