Across
- 3. – Water used for cleaning and bathing
- 5. – Water used in factories
- 7. – Zone with frequent earthquakes
- 9. – Boundary where plates collide
- 11. – The deepest part of the ocean
- 13. – Fastest seismic waves
- 17. – Fault type where rocks move vertically
- 18. – Trench formed by subduction
- 20. – Fault type where rocks move horizontally
- 24. – Fault caused by tension
- 25. – Slowest seismic waves
- 27. – Point inside Earth where an earthquake starts
- 30. – Fault caused by compression
- 33. – Water used to sustain ecosystems
- 36. – Boundary where plates slide past each other
- 37. – Water used for growing crops
- 39. – Use of water for electricity
- 40. – Scientist who studies earthquakes
Down
- 1. – Theory explaining plate movement
- 2. – Metal in the solid inner core
- 4. – A metal in the Earth's outer core
- 6. – Sudden shaking of the ground
- 8. – Water used for leisure
- 10. – Point on Earth's surface above the focus
- 12. – The oldest ocean
- 14. – The outermost solid layer of the Earth
- 15. – Water used for drinking and cooking
- 16. – The innermost layer of the Earth
- 19. – Boundary where plates move apart
- 21. – Cycle that moves water through Earth
- 22. – Instrument that records earthquake waves
- 23. – Process forming mid-ocean ridges
- 26. – Ancient supercontinent
- 28. – The process of ocean floor spreading
- 29. – Slow movement of tectonic plates
- 31. – Waves that travel through Earth
- 32. – The layer beneath the crust
- 34. – Semi-fluid part of the mantle
- 35. – Layer responsible for tectonic activity
- 38. – Scale used to measure magnitude