Plate Tectonics Crossword Puzzle

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Across
  1. 3. Long narrow mountains formed by magma at divergent boundaries
  2. 7. Two plates move toward each other
  3. 10. Vents in earth's crust through which molten rock flows
  4. 12. Blocks of crust that move horizontally past each other
  5. 13. The partially melted portion of the mantle
  6. 15. The size of an earthquake
  7. 16. rising mantle material at mid-ocean ridges push plates away from the ridge
  8. 17. Earth is broken down into large rigid pieces that move with respect to each other
  9. 18. This rock is formed by erosion
  10. 20. Two plates collide, one can sink other the other, when this happens it pulls on the rest of the plate
Down
  1. 1. The process that occurs when one tectonic plate moves under another tectonic plate
  2. 2. The crust and uppermost part of the mantle
  3. 4. This rock is formed by heat and pressure
  4. 5. The circulation within fluids caused by differences in density and thermal energy
  5. 6. Two plates move away from each other
  6. 8. Magma that erupts onto earth's surface
  7. 9. Molten rock stored beneath earth's surface
  8. 11. A crack or fracture in earth's crust along which movement occurs
  9. 14. A vibration caused by the rupture and sudden movement of rocks along a crack in earth's crust
  10. 19. This rock is formed when hot molten rock crystallizes