Tectonic Plates

2. Dense center of the Earth
7. Molten rock in the earth's crust
9. Boundary between two colliding plates
10. Result from the action of plate tectonic forces
11. Vibrations caused by breaking rocks along faults
12. current this type of energy transfer is believed to drive plate movement
13. Outermost, rigid layer of the Earth
15. Layer under the earths crust
18. Boundary between two tectonic plates that are moving away from each other
19. plate piece of the lithosphere that moves on the asthenosphere

1. Subject to or caused by an earthquake or earth vibration
3. A fissure in the earth's crust through which molten lava and gases erupt
4. Proposed the continental drift theory in the 1900s (last name)
5. Boundary between two plates that are sliding past each other
6. What magma is called when it reaches the surface
7. A layer between the crust and the outer core
8. Soft layer of the mantle
14. spot Location in the mantle that is hotter than any other areas
16. Earth's outermost layer
17. A geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate