crossword vocabulary

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Across
  1. 3. boundries,plates that slide on by
  2. 6. ridge, ridge in the ocean
  3. 8. current,circular motion of hot and cold air
  4. 9. reversal,change in the Earth's magnetic field
  5. 12. upper layer of the earth's mantle,
  6. 14. one plate goes under another
Down
  1. 1. core, liquid layer of earth
  2. 2. layer in the earths surface
  3. 4. boundries,plates pull apart
  4. 5. the rigid outer part of the earth
  5. 7. core, hottest part of earth
  6. 8. boundaries,where two Continental plates come together
  7. 10. drift,the gradual movement of the continents across the earth's surface
  8. 11. spot,place where it is always hot
  9. 13. outter layer of earth