Crossword puzzle

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Across
  1. 8. An ancient organism that was preserved as rock
  2. 9. heat transfer by the movement of a fluid
  3. 11. The supercontient
  4. 12. the transfer of enegry that is carried through rays
  5. 14. spreading when mid-ocean ridges continually to add new material to the ocean floor
  6. 15. ocean floor that sinks beneath a deep ocean trench
  7. 17. Current, Heating and cooling of a liquid
  8. 19. a molten mixture of rocking forming a substance
  9. 20. Boundary, plates that move apart
Down
  1. 1. heat transfer that is touching
  2. 2. magama that reaches the surface
  3. 3. Boundary, plates that moves together
  4. 4. arc a string of islands
  5. 5. of fire, Major belt of volcanoes
  6. 6. a mountain that forms in Earth's crust when a molten material reaches the surface
  7. 7. spot an area where the material is deep whitin Earth's mantle
  8. 10. A molten material
  9. 13. Boundary, plates that slip past each other
  10. 16. a measure of how much mass there is in a given volume of a substance
  11. 18. trenches, when the ocean floor plunges into deep underwater canyons