Plate Tectonics Crossword Puzzle

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Across
  1. 4. The mantle is made up of iron and ___
  2. 5. Where the plate tectonics are located
  3. 7. The person who discovered “seafloor spreading”
  4. 10. Boundary when plates move away from each other
  5. 11. Caused by subduction
  6. 12. Boundary when plates slide past each other
  7. 16. Two oceanic plates come together one slides down the other and forms a subduction ___
  8. 18. Formed in subduction zone
  9. 19. The ___ rocks are found closest to the ridge
  10. 20. The person credited with the Continental Drift theory
Down
  1. 1. Boundary when plates come together
  2. 2. What makes up the ocean floor
  3. 3. Supercontinent caused by the movement of plate tectonics
  4. 6. When a plate moves under the another plate
  5. 8. Plate tectonics move about 6 centimeters every ___.
  6. 9. Causes convection currents in the mantle
  7. 13. The Mid-Ocean ___ is a seafloor mountain system caused by plate tectonics
  8. 14. A series of grooves on a rock or mineral
  9. 15. The ___ rocks are around at the trench
  10. 17. The upper part of the mantle