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PS OGT PRACTICE
PLATE TECTONICS
| Question | Answer |
|---|---|
| PLATE TECTONICS: CRUST | Earth’s outer layer; broken up into 7 plates. |
| PLATE TECTONICS: MANTLE | convection currents within mantle cause plates to move, causing volcanoes, earthquakes, mountain building, seafloor spreading |
| Lithosphere | crust and top layer of mantle; divided into shifting tectonic plates. |
| Divergent Plate Boundaries | two tectonic plates spread apart. Magma comes through the gap. |
| Convergent Plate Boundaries | two tectonic plates come together |
| Subduction Zone | heavier oceanic crust dives under lighter continental crust. |
| Transform Plate Boundaries | two plates slide by horizontally |