Across
- 3. two plates slide past each other
- 4. Most recent supercontinent
- 5. liquid iron/nickel; Earth's magnetic field
- 7. 2 plates meet;one crushed under the other
- 10. outermost shell of Earth's layers. Thinnest layer.
- 11. two plates move away from each other
- 12. magma upwells from underground
- 15. underwater ridge between major plates
Down
- 1. Theory:Earth divided into moving plates
- 2. where two plates meet
- 6. hottest layer; dense ball of iron and nickel.
- 8. thickest layer of lava under Earth's crust
- 9. movement of plates on Earth's surface
- 13. Hot "semi fluid" below Earth's crust.
- 14. Large slabs of rock that divide Earth's crust.