Cross Word Puzzle

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Across
  1. 6. where magma reaches the earth's surface (at the rift valleys)
  2. 7. a process in which material rises and falls because of differences in temperature and density. It moves the plates.
  3. 8. the lithosphere is broken into pieces of different shapes and sizes
  4. 9. A curving chain of mountain volcanoes that forms on the continent during subduction when oceanic crust collides into continental crust
  5. 13. Boundary where plates slide past each other horizontally
  6. 14. zone The region where oceanic plates sink down into the asthenosphere.
  7. 18. mountain chain, along the west coast of South America
  8. 19. boundaries where 2 plates collide and part of a plate is destroyed.
  9. 23. the longest underwater mountain range on Earth, running north to south down the middle of the Atlantic Ocean
  10. 24. Volcanic islands that form as a result of oceanic crust colliding with another oceanic crust during subduction
  11. 25. under water mountain chains created by sea floor spreading
Down
  1. 1. boundaries where 2 plates move apart and it creates new crust.
  2. 2. another name for convergent boundaries because crust is destroyed
  3. 3. is the process in which denser plate is pushed downward beneath another plate where it will go into the asthenosphere and melt into magma.
  4. 4. by oceanic and continental collisions (convergent boundary)
  5. 5. Proposed the theory of sea-floor spreading
  6. 10. older rocks located further from midocean ridges. Evidence for sea floor spreading.
  7. 11. due to magnetic reversal recorded in the ocean floor. Stripes appear in the same pattern on both sides of the rift valley. Evidence for sea floor spreading.
  8. 12. an area where 2 plates meet
  9. 14. A major fault in California formed by a sliding transform boundary.
  10. 15. another name for divergent boundaries because new crust is created.
  11. 16. Area around the Pacific Ocean known for frequent earthquakes and volcanoes
  12. 17. an area where plates moved apart and magma poured out
  13. 20. These mountains separate India from China and are the tallest in the world. Formed at convergent boundaries between continental and continental plate
  14. 21. deep areas on the ocean floor that are created by a subducting plate
  15. 22. a process in which new ocean floor is created when 2 plates move apart allowing lava to rise through the rift valley.