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