Across
- 4. theory explaining Earth's lithospheric plate movement.
- 6. fracture in Earth's crust where movement occurs.
- 8. plates move toward each other; form mountains/trenches.
- 9. rigid outer layer of the Earth (crust + upper mantle).
Down
- 1. plates move apart; create new crust at ridges.
- 2. process of rock formation and transformation.
- 3. plates slide past each other; cause earthquakes.
- 5. magma is below surface; lava is above surface.
- 7. semi-fluid layer beneath the lithosphere allowing plate movement.
- 10. one plate sinks beneath another into the mantle.