Across
- 3. Crack in Earth's crust
- 10. Sudden ground shaking
- 11. Deep ocean valley
- 13. Breakdown of rocks
- 15. Wearing away of rock
- 18. Mountain with molten rock
- 19. Sedimentary rock of sand
- 20. Natural inorganic substance
- 21. Fine-grained igneous rock
- 23. Particles deposited by water
- 24. Solid with a regular structure
Down
- 1. Large section of Earth's crust
- 2. One plate beneath another
- 4. Molten rock on Earth's surface
- 5. Metamorphosed limestone
- 6. Metamorphic rock of clay
- 7. Underwater mountain range
- 8. Movement of Earth's plates
- 9. Coarse-grained igneous rock
- 12. Remains of ancient life
- 14. Study of Earth's structure
- 16. Mixture of organic matter
- 17. Molten rock beneath Earth's surface
- 22. Rock formed from shells
- 25. Solid mineral material