Earth Dynamics Crossword

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Across
  1. 4. a permanent change in a rock
  2. 5. downward vertical motion of the earth's surface
  3. 7. parallel forces that act in opposite directions
  4. 8. balance between crust and the denser mantle below itsubsidence downward vertical motion of the earth's surface
  5. 11. mountains formed from ash and lava hardening and building up
  6. 12. squeezing stress
  7. 13. stress that pulls something apart
  8. 16. parallel ridges that form where blocks of crust move up and down along the fault
  9. 17. an area of many fractured pieces of crust along a large fault
  10. 18. crack or fracture in the earth's lithosphere
Down
  1. 1. large regions that form where blocks of crust move up and down along the fault
  2. 2. mountains formed from compression of continental crust
  3. 3. deep underwater troughs created by subduction
  4. 6. force acting on a surface
  5. 9. when tectonic plates slide horizontally past each other
  6. 10. a change in the shape of a rock caused by stress
  7. 14. rock does not deform, does not permanently change
  8. 15. upward vertical motion of the earth's surface