Chapter Ten

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Across
  1. 2. shows movement of the ocean plates.
  2. 3. Hot rock rises, cool rock sinks.
  3. 5. Third type of plate boundaries.
  4. 8. The study of magnetic properties of ancient rocks.
  5. 9. Proposed the hypothesis that started it all
  6. 10. Formed at at an ocean-- Continent boundary.
  7. 13. A large areas of stable igneous or metamorphic rock.
  8. 14. When the poles are in opposite places.
  9. 16. Two plates move away from each other.
  10. 18. What happens to the rock of a subducting plate.
Down
  1. 1. Formed at an ocean-- Ocean boundary.
  2. 4. The theory that came after Wegner's was rejected.
  3. 6. Oceanic lithosphere sinks beneath continental lithosphere.
  4. 7. First type of of plate boundaries.
  5. 10. A hypothesis that states that continents were joined.
  6. 11. Two plates slide past each other.
  7. 12. The driving force behind seafloor spreading.
  8. 15. Second type of plate boundaries.
  9. 17. Causes continentals to break apart.