Across
- 2. soft layer below lithosphere
- 4. underwater mountain system/ Sea-floor spreading
- 8. divergent boundary or land
- 9. crust and upper mantle
- 13. long deep depressions in ocean floor
- 16. plates spread
- 17. plates slide from each other
Down
- 1. movement of heat in liquids and gasses=warm rises, cool sinks
- 3. solid outer
- 5. plates move together
- 6. movement of heat energy through space
- 7. breaks in the crust where earthquakes occur
- 10. original supercontinent
- 11. sideways and downward movement
- 12. liquid and solid center
- 14. movement of heat from one solid object to another
- 15. hot solid rock below crust