Across
- 5. sideways and downward movement
- 8. original super continent
- 9. liquid and solid center
- 11. breaks in the crust where earthquakes occur
- 12. movement of heat and energy through space
- 13. underwater mountain system
- 16. plates move together
- 17. movement of heat and liquids and gasses
Down
- 1. hot solid rock below crust
- 2. soft layer below lithosphere
- 3. crust and upper mantle
- 4. plates spread
- 6. movement of heat through solid objects
- 7. plates slide past each other
- 10. solid outer layer
- 14. long deep depressions in ocean floor
- 15. divergent boundry on land