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plate motion
| Term | Definition |
|---|---|
| outer layer | earth's outermost layer of hard, solid rock that is underneath the soil, vegetation, and, water |
| cross section | a diagram that shows what the inside of something looks like |
| plate | one of the very large sections of hard, solid rock that make up earth's outer layer |
| pattern | something we observe to be similar over and over again |
| plate boundary | the place where two plates meet |
| earthquake | a sudden shaking of earth's surface |
| convergent | moving toward the same place |
| divergent | moving apart In different directions |
| mantle | the layer of soft solid rock underneath earth plates |
| mid-ocean ridge | an underwater mountain range formed when two plates move apart |
| trench | a long deep indentation in the ocean floor formed when two plates move together |
| volcanic activity | any of the many processes such as eruption and lava flows in which gas lava and ash are pushed out on the surface of earth |
| analyze | to examine in detail for purpose |