Across
- 1. An opening at the surface where volcanic material passes
- 3. Molten rock
- 5. Lava that flows slowly like wax dripping from a candle
- 7. A funnel-shaped pit near the top of a volcano
- 9. Where most earthquakes happen
- 11. An area of deep cracks between two divergent tectonic plates
- 12. A large, semicircle that forms from the magma chamber
- 13. A wave of energy
- 15. A wave that moves in an S shape
- 16. The point at which an earthquake occurs
- 17. An instrument used for pinpointing earthquakes
- 18. The ground suddenly start to shake
Down
- 1. A mountain that shoots lava out of the top
- 2. A volcanically active area of earth's surface far from a plate boundary
- 4. Used to measure the strength of earthquakes
- 6. The point directly above the earth focus
- 8. Used to measure the degree at which earthquakes are felt by people
- 9. A wave of energy that moves back and forth
- 10. Molten rock blown int tiny particles from a volcano
- 14. The body of molten rock that feeds a volcano