Crossword puzzle

8. An ancient organism that was preserved as rock
9. heat transfer by the movement of a fluid
11. The supercontient
12. the transfer of enegry that is carried through rays
14. spreading when mid-ocean ridges continually to add new material to the ocean floor
15. ocean floor that sinks beneath a deep ocean trench
17. Current, Heating and cooling of a liquid
19. a molten mixture of rocking forming a substance
20. Boundary, plates that move apart

1. heat transfer that is touching
2. magama that reaches the surface
3. Boundary, plates that moves together
4. arc a string of islands
5. of fire, Major belt of volcanoes
6. a mountain that forms in Earth's crust when a molten material reaches the surface
7. spot an area where the material is deep whitin Earth's mantle
10. A molten material
13. Boundary, plates that slip past each other
16. a measure of how much mass there is in a given volume of a substance
18. trenches, when the ocean floor plunges into deep underwater canyons