Across
- 1. magma erupts onto Earth's surface
- 5. molten rock below Earth's surface
- 6. break in Earth's crust along which movement occurs
- 8. two plate move apart from each other
- 11. name of one single land mass
- 12. underwater troughs on seafloor
- 13. plates slide horizontally past each other
Down
- 2. vent in Earth's crust where molten rock flows
- 3. rapid downhill movement of soil, rocks ad boulders
- 4. one tectonic plate moves under another plate
- 7. a wave that forms when there is an ocean disturbance
- 9. sudden movement of rocks along a break in Earth's crust
- 10. two plates moving toward each other