Plate Tectonics

6. Theory that Earth's crust is divided into 12 large plates
10. the formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side
11. a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action
12. A large chunk of Earth's crust
13. High energy wave

1. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas
2. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
3. Location where tectonic plates meet
4. Theory that parts of Earth's crust slowly drift atop a liquid core
5. deep rift valley formed by the divergent boundary
6. a long narrow steep-sided depression in the earth's oceanic crust
7. Region where 2(or more) tectonic plates move toward one another and collide
8. Zone in Earth's crust along which rocks slide past each other
9. Region where 2(or more)tectonic plates move apart