Plate Tectonics and Boundaries

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Across
  1. 1. An example of an underwater ridge formed by a divergent boundary.
  2. 3. A deep underwater canyon formed by subduction.
  3. 6. A sudden shaking of the Earth’s surface caused by plate motion.
  4. 7. An underwater mountain ridge formed by two plates moving away from each other.
  5. 9. An example of a mountain range that was formed by two continental plates colliding.
  6. 12. A large, moving section of the Earth’s crust.
  7. 14. An opening in the Earth’s crust where magma escapes.
  8. 15. A semi-solid layer of the Earth. Also called the mantle.
  9. 16. Where two plates move away from each other, creating new crust.
  10. 17. Where two tectonic plates move towards each other, often forming mountains.
  11. 18. An area where one plate moves under another, creating deep ocean trenches.
Down
  1. 2. A deep valley caused by the movement of two continental plates moving away from each other.
  2. 4. Where two plates slide past each other in opposite directions, causing earthquakes.
  3. 5. The deepest ocean trench. It was formed by subduction.
  4. 8. The rigid outer layer of the Earth. Floats on top of the asthenosphere. Also called the crust.
  5. 10. An example of a mountain range that was formed by an oceanic plate and a continental plate colliding.
  6. 11. A well-known transform boundary that causes frequent earthquakes.
  7. 13. A chain of volcanic activity formed at a convergent boundary.