Across
- 3. A narrow crack in on the ocean floor.
- 5. Someone who studies rocks.
- 9. Solidified by lava or magma.
- 10. Where one bends and slides underneath the other.
- 13. Two plates that slide against each other.
- 15. Two plates are moving apart from each other.
- 17. Shaking in the ground.
- 18. The unit we are studying.
- 19. The densest layer.
- 21. The liquid layer.
Down
- 1. Release hot lava.
- 2. Transformation via heat.
- 4. A range of multiple of them.
- 6. ......Of Fire
- 7. Accumulation or deposition of mineral or organic particles at the Earth's surface.
- 8. A big, high wave.
- 11. Two plates pushing towards each other.
- 12. The top layer of the earth.
- 14. The solid part of the rock cycle.
- 16. The scale measures the magnitude of the wave of an earthquake.
- 20. Something that preserves the history of life.