Across
- 3. An opening in the earth's crust which lava can escape.
- 5. A big wave of water caused by a earthquake.
- 6. solid rock underlying deposits like soil.
- 7. A hot fluid below or within the earth's crust.
- 9. What goes in the air after a eruption?
- 12. A sudden violent shaking in the ground.
- 15. The powdery residue left after a burning substance.
- 16. An act of explosion in a volcano.
- 17. The resistance of a fluid.
- 18. This shakes during a earthquake.
- 19. A type of rock found in volcanoes.
- 20. A flow of lava from a volcano.
Down
- 1. A movement of extremely high air pressure that is caused by a explosion in a earthquake.
- 2. Region where many volcanoes erupt and earthquakes happen.
- 4. A hard unreactive compound that occurs as mineral quartz.
- 8. Hot molten or semi fluid rock.
- 10. What does the ground do during a earthquake?
- 11. A narrow opening or line of breakage made by cracking.
- 12. A sudden violent burst of energy.
- 13. The sliding down of a mass of earth or rock.
- 14. Giant pieces of the earth's crust and uppermost mantle.