Across
- 2. outermost layer of earth layers
- 6. convergent plate boundary
- 8. thinner and denser than continental
- 11. thicker and less dense than Oceanic
- 12. plates coming apart
- 13. deep valley in an ocean subduction zone
- 15. plates sliding against each other
- 17. where convection currents happen
- 18. upper layer of earth
Down
- 1. one plate sinking below another
- 3. where two plates meet
- 4. divergent plate boundary below water
- 5. plates move on top of this plastic layer
- 7. innermost layer of the earth
- 8. liquid layer of ion and nickel
- 9. plates coming together
- 10. chunk of lithosphere that moves around
- 14. where hot rock rises from the mantle and erupts onto the surface of the earth
- 16. molten rock beneath the earth's surface
- 19. divergent plate boundary on land