Across
- 2. weak point on the crust where magma rises
- 4. mountain on Earth's surface where lava flows
- 5. molten rock under the surface
- 7. bombs large burning projectiles thrown from volcano
- 9. magma squeazed into horizontal cracks
- 10. theory that Earth's plates move (2 words)
- 12. unlikely to erupt again
- 13. large depression from collapse of volcano
- 15. intrusion magma that hardens beneath the surface
- 16. quiet now but might erupt again
Down
- 1. boundary where plates collide
- 3. air current of hot gas and rock from volcano
- 6. has erupted in last 10,000 years
- 8. tiny pieces of pulverized rock
- 11. magma squeazed into vertical cracks which hardens
- 14. boundary where plates divide