Across
- 4. earths thin outer shell broken into big pieces
- 5. a current in the fluid that results in convection
- 8. the process that destroys old lithosphere
- 10. molten natural material which all igneous rocks are from
Down
- 1. a rupture in the crust of a planetary
- 2. when two plates collide
- 3. a long narrow ditch
- 6. a break apart through faulting caused by plate tectonics
- 7. when two plates slide
- 9. when two playes divide