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