plate tectonics

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Across
  1. 3. shacking that occurs when rock in earths crust breaks
  2. 4. a break or a crack in the earths surface
  3. 5. a wave of energy that travels through the earth
  4. 7. underwater mountain range
  5. 9. a region where two plates slide against each other
  6. 11. a region where two plates divide
Down
  1. 1. an area of volcanic activity
  2. 2. a region where one plate slides under another
  3. 5. continuous spreading of forming new igneous rock
  4. 6. a region where two plates collide
  5. 8. a crack that forms between two plates
  6. 10. a string of volcanoes and sites of siesmec activity