Across
- 3. Crust made of basalt
- 5. Thickest type of crust
- 6. Bubbles grow and separate from the magma
- 8. Where an eruption occurs
- 9. ________ flow
- 12. Violent breaking of magma bubbles
- 15. Hawaii's geologic setting
- 16. One plate sinks below another
- 19. Small particles of crystallized magma
- 21. Intermediate composition
- 22. Can be effusive or explosive
Down
- 1. Innermost layer of our planet
- 2. H2O,CO2, etc.
- 4. Movement of Earth's lithosphere
- 5. Boundary where plates meet
- 7. Pahoehoe or a'a
- 10. Third planet
- 11. Black rock from mantle melting
- 13. Melted rock
- 14. Most evolved composition
- 17. Mid-ocean ridge, ex.
- 18. Earth's thin shell
- 20. Most voluminous layer of our planet