Across
- 2. area where an oceanic plate goes into the mantle
- 4. boundary where two plates move apart
- 8. the inner most layer of Earth; made completely of dense metal
- 10. the largest layer of earth
- 11. cycle of heating, rising, cooling, and sinking
- 13. a rigid layer of Earth made of the crust and upper mantle
- 14. plasticlike layer of Earth
- 15. sections of the lithosphere
Down
- 1. theory that the continents slowly moved apart
- 3. place where two plates move together
- 5. plate boundary where two plates slide past each other
- 6. the continent that is believed to once be all the continents together
- 7. a plate found under the sea floor
- 9. a plate found on land
- 12. outermost layer of Earth