Across
- 4. big mountain that spits out ash and lava
- 5. 85% of the Earth's mass
- 7. break or crack in the Earth's crust
- 8. above ground magma
- 10. solid mass of iron/nickel
- 11. the outermost layer of the earth
- 13. quake causes seismic shaking
- 15. a semi solid mass of the earth
Down
- 1. big waves that can cause flooding
- 2. of fire more than 60% of volcano are here
- 3. crust thicker less dense
- 6. boundaries north am plate nazaca plate
- 7. shocks earth quakes before the main ones
- 9. shocks earth quakes after the main ones
- 12. core liquid layer
- 14. American plate a plate boundary