Across
- 3. the reason the Lower mantle does not melt
- 7. Weak layer of the mantle that is partially melted
- 9. heat transferred by contact
- 10. Ocean basins form at this
- 13. the name of the super continent
- 15. Mass per unit volume
- 18. uppermost layer of the Earth
- 19. heat transferred without contact
- 20. what is in the center of the Earth?
Down
- 1. the theory that all the Earth's land was once joined into a super continent.
- 2. cool and rigid outer layer of the mantle
- 4. The type of waves that move along the Earth's surface
- 5. the lose of energy through radiation
- 6. waves that are useful in analyzing the Earth's interior surface
- 8. when ocean and continent come together at this boundary
- 11. these plate boundaries slide past each other
- 12. the reason boats float on top of the water and doesn't sink
- 14. Layer of the mantle that does not melt
- 16. the second layer of the Earth
- 17. the crust that is made up of mostly basalt
- 19. the crust made up of mostly granite