earthquake and waves crossword puzzle

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Across
  1. 3. A force that acts on rock to change its shape or volume
  2. 5. Pushes a mass of rock in tow opposite directions
  3. 7. Two blocks are pulled apart by tension (divergent plate boundary)
  4. 8. an area of many fractured pieces of crust along a large fault
  5. 9. a slow wave that moves like ripples in a pond causing much damage.
  6. 15. one plate goes under another during collision forming a deep trenches where the two plates meet
  7. 21. A natural break or crack in the rocks that make up earth’s crust, along which rocks have moved relative to one another.
  8. 22. Waves that carry energy of an earthquake away from the focus; there are three types
  9. 24. when divergent boundaries occur within a continent, they cause enormous splits in the crust
  10. 25. travel in all directions from the focus through the body of the Earth inner layers (core, mantle, crust).
  11. 27. curved line of volcanoes that forms parallel to plate boundaries
  12. 29. creates a permanent change in the shape of a rock; usually occurs when rocks are weak or hot
Down
  1. 1. point on the surface directly above the focus
  2. 2. Two blocks of rock slide horizontally past each other in opposite directions caused by SHEAR stress.
  3. 4. Do not travel through the Earth but instead they are constrained to travel along the surface of the Earth only from the epicenter(outer crust).
  4. 5. Two blocks of rock slide horizontally past each other in opposite directions caused by SHEAR stress.
  5. 6. Two blocks of rock are pushed together by compression (convergent boundary)
  6. 10. the location under the Earth where the earthquake actually originated
  7. 11. Two blocks are pulled apart by tension (divergent plate boundary)
  8. 12. Two blocks of rock are pushed together by compression (convergent boundary)
  9. 13. tension causes oceanic crust to spread allowing hot rock from mantle to rise creating high ridges
  10. 14. A change in the shape of a rock caused by stress; there are two
  11. 16. Change in rock that is NOT permanent; when stress is removed rock goes back to original shape
  12. 17. Vibrates forward and backward in the direction of the wave AND vibrates up and down perpendicular to the direction of the wave.
  13. 18. a high temperature
  14. 19. collision between two continental plates
  15. 20. divided into several plates that glide over the plastic-like and less rigid asthenosphere (upper mantle).
  16. 23. Squeezes rock until it folds or breaks
  17. 26. Sudden release of energy in the earths crust that causes vibrations in the ground
  18. 28. Pulls on the crust, stretching rock so it becomes thinner in the middle