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