Chapter 7

9. when two tectonic plates move away from each other
10. The main heat transfer mechanism in the Earth's mantle is convection, a thermally driven process
11. the process by which the North pole is transformed into a South pole and the South pole becomes the North pole
15. the rigid outer part of the earth, consisting of the crust and upper mantle
16. Magnetic minerals in the rock having the same polarity as the Earth's present magnetic field

1. The layers on the floor that if they open up they let out lava and earthquakes
2. A elevated area that spews lava
3. When the tectonic plates large slabs of the lithosphere split apart.
4. when two tectonic plates collide
5. a change of the earth's magnetic field to the opposite
6. a proposed driving force for plate motion in plate tectonics
7. The moving of the continent
8. when two plates slide past each other, horizontally
12. slab pull is a part of the motion of a tectonic plate
13. What was before the continents split up
14. the sideways and downward movement of the edge of the plate of the earth's crust into the mantle beneath another plate