Plate Tectonics Crossword

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Across
  1. 5. The uppermost division of the solid earth
  2. 7. The thick part of Earth's crust that forms continents. Older than oceanic crust
  3. 8. Long, narrow depressions on the seafloor that forms at the boundary of tectonic plates
  4. 12. The process in which new ocean crust is continually coming into being and spreading along the ocean floor
  5. 13. Large landmass that is thought to have been made of all continents before drifting apart
  6. 14. Tectonic plates compromised of oceanic crust
  7. 17. When one lithosphere plate collides with another and is forced under another plate
  8. 18. cracks in the Earth's crust along where there is movement
  9. 19. The drifting of the continents
  10. 20. Boundary made when two tectonic plates move towards each other
  11. 21. The sudden shaking of Earth's crust caused by energy release along fault line or volcanic activity
  12. 22. A large continuous mass of land
Down
  1. 1. the theory that the earth's lithosphere is divided into large, plate like sections
  2. 2. Where the tectonic plates float
  3. 3. Tectonic plates comprised of mainly continental crust
  4. 4. The thick, dense layer of rock between Earth's crust and its core
  5. 6. Boundary made when two tectonic plates move away from each other
  6. 7. A large volcanic Crater formed by an eruption and collapse of a volcano
  7. 9. A mountain or hill that has a crater or vent from where lava and gas have erupted from earth's crust
  8. 10. Hot fluid below or within the earth's crust
  9. 11. The upper layer of Earth's interior made up of the crust and upper mantle that is broken up into rocky plates
  10. 15. The boundary between two tectonic plates
  11. 16. Boundary made when two tectonic plates move in opposite directions against each other