Across
- 1. The thin layer of the earth's surface
- 4. The centre of the earth
- 7. boundaries occur where two plates slide apart from each other
- 10. Scale This measures the strength of the earthquake
- 12. Method of farming found in Alpine areas
- 17. Volcano Steep sided cone with layers of ash and lava
- 18. Holmes The theory was launched by
- 19. Margin Where two plates move apart
Down
- 2. Volcano A gentle sided volcano with a wide base made up of basic lava
- 3. Mountains Mountains formed by the earth's movements
- 5. boundaries occur where two lithospheric plates slide
- 6. Plate A huge section of the earth's crust
- 8. A shaking of the earth's crust
- 9. Huge tidal waves that are caused by submarine earthquakes
- 11. The mouth of the volcano
- 13. Zone Where a plate sinks and slides under another plate
- 14. The molten rock that surrounds the earth's core
- 15. The point on the earth's surface directly above the epicenter
- 16. Lava Thin , runny lava which can flow long distances
- 20. The name given to liquid magma when it reaches the surface of the earth