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plate motion
| Term | Definition |
|---|---|
| Cross section | diagram that shows what the inside of something looks like. |
| outer layer | Earth's outermost layer of hard,solid rock that is underneath the soil, vegetation, and water |
| plate | one of the very large sections of hard,solid rock that makes up Earth's outer layer |
| pattern | somethings 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 |
| mantle | the layer of soft,solid rock underneath Earth's plates |
| convergent | moving toward the same place |
| divergent | moving apart in different directions |
| 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 a purpose |