Across
- 2. rules about buildings
- 5. to hit suddenly
- 8. caused by earthquake vibrations
- 11. small, fast shaking movements
- 17. changed from a solid to a liquid
- 18. pieces of the Earth’s crust
- 19. top layer of something
- 20. the thickest layer of the Earth
Down
- 1. a large ocean wave
- 3. the center part of the Earth
- 4. how much of something
- 6. to cause something to happen or begin
- 7. opening in the Earth’s crust
- 9. a building
- 10. outer part of the Earth
- 12. the edge of something
- 13. to build or put together
- 14. to say something will happen
- 15. let go or set free
- 16. very precise and clear