Chapter7 Crossword

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Across
  1. 5. surface along which rocks break and slide past each other
  2. 6. boundary between 2 tectonic plates sliding past each other
  3. 7. waves Vibrations caused by an earthquake
  4. 10. Sinking of regions of Earths crust to lower elevations
  5. 12. Rock that are _____take up more space
  6. 15. stress that occurs when forces act to stretch an object
  7. 16. Laurasia is the ______ piece of Pangea
  8. 18. System of satelites
  9. 19. land mass which formed 245 million years ago
  10. 20. The _____core is the liquid layer of Earth
Down
  1. 1. Mountains that form when magma rises to the earths surface and erupts
  2. 2. when the hanging wall moves up it is a _____fault
  3. 3. Mountains that form when rock layers are squeezed together
  4. 4. Upward arching fold
  5. 8. Plastic layer of mantle
  6. 9. crust springs back to previous elevation
  7. 11. Outer most layer of Earth
  8. 13. a set of deep cracks between tectonic plates
  9. 14. the bending of rock layers
  10. 17. Rising of regions of Earths crust to higher elevations