PLATE TECTONICS
Across
- 4. the outermost layer of earth
- 5. current that causes the plates to move
- 7. location on the Earth's surface directly above the focus of an earthquake
- 9. name of the supercontinent that existed about 200 million years ago
- 10. composed of crust and upper mantle
Down
- 1. vibration of Earth due to the rapid release of
- 2. boundary where plates the move apart
- 3. type of rock which made up the continental crust
- 6. crust found in the ocean floor
- 8. plates sliding past or slipping past each other