Across
- 4. break in crust
- 6. divergent boundary on land
- 7. deep depressions in ocean
- 8. crust/upper mantle
- 10. plates collide
- 13. sideways and downward movement
- 14. solid outer layer
- 15. warm rise cool sink
- 16. plates divide
- 17. center
Down
- 1. supercontinent
- 2. heat through space
- 3. soft layer under lithosphere
- 5. underwater mountain system
- 9. plates slide past each other
- 11. heat from 1 solid to another
- 12. solid hot rock