Across
- 3. Molten rocks expelled by a volcano during explosion
- 4. These currents slowly move the plates around
- 5. When the denser plate sildes under the less denser plate
- 6. The outer most shell of the Earth
- 8. The sudden movment of the Earth's crust causing great destruction
- 10. When the plates slide away from each other and new plates are createt
- 11. When the plates slide past each other
Down
- 1. A chain of volcanoes formed above a subducting plate
- 2. Instrument used to measure the intensity of the earthquake
- 4. When the plates collide with each other.
- 7. The earth's hot centre
- 9. A mountain rising from the ocean sea floor and does not reach the water's surface.
- 12. Consists of hot dense, semisolid rock and is the layer between the crust and the outer core