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Layers of the Earth and Tectonic Plates
| Questions |
Answers |
| Thinnest Layer |
Crust |
| Contains most of the Earth's mass |
Mantle |
| The movement of Earth's plates |
Continental Drift |
| Makes up tectonic plates |
Lithospere |
| Scientist of Theory of Continental Drift |
Wegener |
| Ocean floor sinks into the mantle |
Subduction |
| Puzzle-like pieces floating on Asthenosphere |
Tectonic Plates |
| Underwater mountain |
Mid Ocean Ridge |
| Supercontinent |
Pangaea |
| Trace of an ancient organism |
Fossil |
| New material is added to the ocean floor |
Sea Floor Spreading |
| push together; mountains |
Convergent |
| divide, separating; mid-ocean ridge, rift valley |
Divergent |
| grind against, slide; earthquakes, fault line |
Transform |
| Deep underwater canyons |
Deep Ocean Trench |
