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