Across
- 3. the thickest layer made of semi-molten rocks
- 5. flow, a fast-moving current of hot gas and volcanic materials
- 7. plates moving toward each other
- 10. mountains, when plates meet and mountains form under pressure
- 11. semi-fluid material within the earth
- 12. the innermost and hottest part of Earth's structure
- 14. plates gliding past each other
- 15. volcanic ash saturated with water
- 17. a sudden and rapid vibration of the earth's crust
- 18. ash and dust cemented together
- 19. small rock fragments
Down
- 1. lava that is light and runny
- 2. the name of the super-continent
- 4. plates moving away from each other
- 6. lava that is thick and immobile
- 8. a structure linking the earth's interior to the surface
- 9. solid materials ejected from a volcano
- 13. the current occurring in the mantle
- 16. the thinnest layer on which we live
- 20. magma which has made its way to the surface