Across
- 6. Where two plates push away from each other
- 8. A fast moving current that contains hot gas and volcanic matter
- 10. The boundary between tectonic plates
- 11. An area in the mantle where volcanic activity is not reliant on tectonic plates
- 12. The hottest part of the earth
Down
- 1. The upper layer of the earth's mantle
- 2. When unstable atoms explode and cause thermal energy
- 3. The name of the supercontinent during the late paleozoic era
- 4. Measures the power of earthquakes
- 5. A device that responds to motions in the ground
- 7. Where plates slide past each other at different speeds
- 9. Where two plates collide with each other and one goes underneath the other