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