Across
- 5. how a mineral reflects light
- 6. a large crack in earths crust
- 8. lava shoots up from earth’s surface at this
- 9. rocky outer shell of earth
- 11. the earth crust shakes
- 13. wind, rain, and other things can break down rock during this process
- 15. _________ boundary is where plates separate
- 16. rock changed by pressure and heat
- 17. magma or lava cools and becomes this kind of rock
- 18. Continents are made of ___________ crust
- 19. Charles F. _______ invented the _______ scale to measure the magnitude of earthquakes
Down
- 1. molten rock pushed up from the earth
- 2. remains of organisms preserved in rock
- 3. this landform happens at a divergent plate boundary
- 4. __________ boundary is where plates come together
- 7. this landform happens at a convergent plate boundary
- 10. compacted pieces of rock, minerals, remains of living things
- 12. this boundary is where plates slide past each other
- 14. solid sediment
- 16. melted rock that turns into lava at earths surface