Across
- 2. liquid layer of earth
- 4. a solid ball of metal
- 7. upper mantle
- 8. forms a subduction zones
- 9. a rumbling in the ground
- 11. creater of continentil drift theory
- 12. when a tectonic plates slide past each other
Down
- 1. when the tectonic plates crash into each other
- 3. plates that slide push
- 5. the creater of this crossword puzzle
- 6. the crust and upper mantle
- 10. a fault line in california