Across
- 3. when plates move ward each other and collide
- 8. spreading new oceanic crust is formed through volcanic activity and gradually moves away from the ridge
- 11. molten rock that is under ground
- 12. two tectonic plates move away from each other
Down
- 1. molten rock that breaks through the earth's surface
- 2. an opening in the earth's crust through which lava,and gases escape
- 4. the point inside earth' crust where an earthquake originates
- 5. super continent that incorporated almost all the landmasses on earth
- 6. a fault along a plate boundary where the motion is predominantly horizontal
- 7. the point on the earth's surface vertically above the focus of an earthquake
- 9. push gravitational sliding or sliding plate force
- 10. spot large plume of hot mantle materials rising from deep within the earth