Plate Tectonics

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Across
  1. 3. The place where faults form
  2. 5. A large break in Earth’s crust
  3. 7. Broken pieces of Earth’s crust
  4. 8. The place where a rift valley forms
  5. 9. When the ocean floor sinks into the mantle
  6. 10. The place where mountains form
Down
  1. 1. An underwater canyon
  2. 2. The adding of new material to the ocean floor
  3. 4. valley A deep valley in Earth’s crust
  4. 6. The theory that the plates are moving