Earth Vocabulary

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Across
  1. 4. The hottest layer of the Earth
  2. 6. The name of Alfred Wegener's hypothesis
  3. 8. The largest layer of the Earth
  4. 9. A narrow valley caused by divergent plate boundaries
  5. 10. A plate made of lightweight minerals
  6. 11. A theory explaining the structure of the Earth's crust
  7. 13. When two plates grind against each other
  8. 16. Occurs when two continental plates collide
  9. 17. The remains of a living being that have been preserved in a rock
Down
  1. 1. The boundary created when two plates push against each other
  2. 2. Created when oceanic and continental plates collide
  3. 3. The boundary created when two plates push away from each other
  4. 5. A supercontinent that created our continents
  5. 7. When the liquid in the mantle goes up and down based upon the temperature of the core
  6. 12. The layer on Earth for which we live on
  7. 14. An underwater rift
  8. 15. A plate made of heavier minerals