Chp 4 Vocabulary

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Across
  1. 3. pieces of crust diverge on land
  2. 5. ocean floor sinks beneath a trench into mantle
  3. 8. Earth plates are in slow constant motion
  4. 9. breaks in Earths crust where rocks slip by
  5. 10. long moutain ranges underwater
  6. 11. underwater canyons where crust bends
  7. 12. trace of an ancient organism
  8. 14. boundary where plates slip past each other
Down
  1. 1. pieces of crust that is formed by cracks
  2. 2. process that adds new ocean material
  3. 4. continents slowly move over time
  4. 6. boundary where plates move apart
  5. 7. supercontinent of one solid landmass
  6. 13. boundary where plates come together