Geology Crossword

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Across
  1. 3. Plate movement when two plates move toward each other.
  2. 6. The driving force behind plate tectonics; occurs in the asthenosphere.
  3. 7. Plate movement when two plates slide past each other.
  4. 9. The upper mantle and crust
  5. 10. Huge rock slabs that the lithosphere is broken up into.
  6. 11. A crack in the Earth's surface between two divergent plates.
Down
  1. 1. A mid-ocean chain of undersea mountains that circle the Earth like the seam of a baseball.
  2. 2. Geological formations that occur at divergent boundaries.
  3. 4. The layer of the Earth between the crust and the core.
  4. 5. Plate movement when two plates move away from each other.
  5. 8. The bottom or floor of the ocean.