Tectonic Crossword

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Across
  1. 3. Number of major (Continental) plates.
  2. 4. A crack in the Earth's crust where movement has occurred, mostly at plate boundaries.
  3. 7. These plates slide horizontally past each other.
  4. 8. Lines where two or more tectonic plates meet.
  5. 10. These types of plates move together and collide, typically forcing one plate underneath the other.
  6. 11. Number of minor plates.
  7. 12. The process in which one plate slides underneath the other plate at Convergent boundaries.
  8. 14. A large landform typically created when tectonic plates push together and force land upwards.
  9. 16. (Partially) Molten rock found under the Earth's surface.
  10. 17. Outermost layer of the planet.
  11. 19. Large slabs of rock in the Earth's lithosphere are classified as Tectonic ________.
  12. 20. These types of plates move away from each other creating a spreading center.
Down
  1. 1. Hottest and most center most layer of the earth.
  2. 2. Area on Earth that is above an abnormally hot region of the mantle.
  3. 5. Outer part of Earth that consists of the crust and tectonic plates.
  4. 6. Opening in the Earth, usually in the form of a mountain, where magma and gasses escape to the surface through eruptions and flows.
  5. 9. The _____________ drift theory suggests Earth's continents were joined before they drifted apart.
  6. 13. A mostly solid layer of rock located between the Earth's crust and it's core.
  7. 15. A supercontinent that is said to have existed millions of years ago and was comprised of every continent.
  8. 18. The earth has several _________ plates.