Across
- 1. plastic-like layer of the Earth
- 3. the way it is put together
- 4. thin, outer layer
- 6. lower mantle
- 8. innermost layer
- 10. thickest layer of the Earth
- 12. presented by Alfred Wegner
- 14. crack on the Earth's surface
- 15. how layers move and behave
- 18. coming together
- 19. presented by Harry Hess
Down
- 2. sliding past each other
- 3. how the plates move
- 5. pieces of the crust
- 7. moving apart
- 9. pressed down on
- 11. split into 2 parts
- 13. crust+upper mantle
- 16. going under another plate
- 17. fully liquid layer