PTRC Vocabulary Crossword #2

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Across
  1. 1. giant waves caused by earthquakes or volcanic eruptions under the sea
  2. 2. a series of processes that create and transform the types of rocks in Earth's crust
  3. 5. to build up
  4. 8. a collision between two of Earth's tectonic plates, where one plate sinks into the mantle underneath the other plate
  5. 12. long, narrow depressions on the seafloor
  6. 13. a boundary where two plates are moving away from each other and new crust is forming
  7. 15. process that occurs at divergent plate boundaries, leading to the creation of new ocean floor
  8. 17. inner most layer of the Earth and helps generate the Earth's magnetic field
  9. 18. are gigantic pieces of the Earth's crust and uppermost mantle
  10. 19. the movement of continents resulting from the motion of tectonic plates
Down
  1. 1. sediment is moved from one place to another
  2. 3. the rate an area is worn down over time
  3. 4. when water, ice, acids, salts, plants, animals, and/or temperature changes break down or dissolve rocks and minerals
  4. 6. the youngest layer is at the top, the oldest layer is at the bottom
  5. 7. to cause damage or to destroy
  6. 9. a seafloor mountain system formed by plate tectonics
  7. 10. third layer of the Earth; only liquid layer; mainly made up of the metals iron and nickel
  8. 11. crack in the Earth's lithosphere that occurs between two pieces of rock
  9. 14. how much an area of land is pushed up over time
  10. 16. geologic structure that is formed by layers or beds of rock being bent or folded.