Across
- 3. (molten rock) emerging as a liquid onto Earth's surface.
- 6. Convection currents are flowing fluid that is moving because there is a temperature or density difference within the material
- 8. the powdery residue left after the burning of a substance.
- 9. a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes
- 11. places where plates slide sideways past each other.
- 14. moving or extending in different directions from a common point
- 15. A sudden and violent shaking of the ground,
Down
- 1. the scientific study of volcanoes.
- 2. a large plume of hot mantle material rising from deep within the Earth.
- 4. is an opening in the earth's crust through which lava, volcanic ash, and gases escape.
- 5. instruments used to record the motion of the ground during an earthquake.
- 7. the branch of science concerned with earthquakes and related phenomena.
- 10. is a fracture or zone of fractures between two blocks of rock.
- 12. a visible suspension of carbon or other particles in air, typically one emitted from a burning substance.
- 13. molten rock that is underground and lava for molten rock that breaks through the Earth's surface.