Plate Tectonic Crossword Puzzle

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Across
  1. 3. The scale used to measure an earthquake
  2. 7. The process a rock goes through
  3. 10. The smoke and dust from a volcanic eruption
  4. 11. The middle layer of Earth
  5. 12. The somewhat liquid material under Earth's crust
  6. 14. The volcanic ring around the Pacific Plate
  7. 18. Sudden violent shaking of the ground
  8. 19. Center of Earth
  9. 20. Hot semifluid rock that is from a volcano
Down
  1. 1. Big flat rocks that move around
  2. 2. Big rocks hurled by a volcanic explosion
  3. 4. Depleting by wind, water, sand, etc.
  4. 5. Chunk of material formed on the surface of Earth
  5. 6. Caused by long atmosphere exposure
  6. 8. A huge wave started by earthquake/s
  7. 9. A rock that has gone through many changes
  8. 13. Sediment thats been deposited by water and air
  9. 15. Outside layer of Earth
  10. 16. Mountain or hill that spews lava out of it
  11. 17. Having solidified from lava or magma