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Rocks and Plates
Review of Rocks and Plate Tectonics Unit
| Question | Answer |
|---|---|
| mantle | partially melted layer that allows plates to move |
| cementation | when rocks become glued together |
| compaction | when rocks are pressed together |
| foliated | layered rock |
| igneous rock | rock formed when hot magma cools and hardens |
| metamorphic rock | rock formed by heat and pressure |
| sedimentary rock | rock formed from sediments, weathered, compacted and cemented together |
| type of boundary that creates earthquakes | transform |
| type of boundary creates mountains, trenches and volcanic islands | convergent |
| type of boundary creates sea floor spreading and rift valleys | divergent |
| continental drift | theory that all continents are fragments of Pangaea now drifting apart |
| plate tectonics | theory that moving plates cover Earth's surface |
| example of a transform boundary | San Andreas Fault, California |
| example fo a convergent boundary | Andes volcanic mountains, South America |
| example of a divergenty boundary | Great Rift Valley, Africa |
| topographic map | a visual with contour lines to show the shape of earth surface |
| profile | cross section or side view of land form |