chapter 7

2. tectonics is a scientific theory that explains how major landforms are created as a result of Earth's subterranean movements
3. mountain ranges in the middle of the ocean
4. A tectonic boundary where two plates are moving toward each other
6. process by which heat is transferred by movement of a heated fluid such as air or water
7. continents
10. when a receptacle is wired backwards
14. action or process in plate tectonics of the edge of one crustal plate descending below the edge of another
16. magnetic feild reverses polarity magnetized

1. new crust forms along a midocean ridge
5. when two tectonic plates move away from each other.
8. a state in which mangetized objects point north
9. the rigid outer part of the earth, consisting of the crust and upper mantle
11. Gravitational force that causes a plate to move away from the crest of an ocean ridge, and into a subduction zone
12. pulling force exerted by a cold, dense oceanic plate plunging into the mantle due to its own weights
13. a theory that all the continents were together
15. a type of fault in which two tectonic plates slide past one another