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