10 point crossword puzzle

1. one of the large landmasses of the earth
6. a theory that the earth’s crust and upper mantle is divided into a number of large plate like sections that move.
9. salt water that is split into north/south Atlantic, Indian and north/southern pacific
11. a single thickness of some substance or material
12. hot molten that erupts from volcanos
14. making a solid into a liquid state
15. name that Alfred Wegener gave to the supercontinent in his theory
17. the movement of plates descending into the earth
18. the bottom of a sea or ocean
20. the action associated with volcanic activity

2. a big wave caused by a large sudden shift of tectonic plates underwater
3. the top three layers of the earth
4. who is the best dog? Hint:it’s mr pease dog
5. molten rock in the earths crust
7. the name of the bottom two layers of the earth
8. the middle three layers of the earth
10. caused by shifts underground of tectonic plates causing mass destruction to homes schools e.g
13. first name of main person to question about Pangea
16. a specialist in the history of earth recorded in rocks
19. a name of a chain of many islands one of which is still developing and most have volcanoes