Across
- 2. The crust of the Earth "floats" on this layer of the Earth
- 6. Large sub-marine mountain ranges under oceans
- 7. Huge parts of the Earth's crust which are moving as one
- 8. The person who proposed the Theory of Continental Drift
- 9. Molten rock coming to the Earth's surface.
- 10. Instrument used to record earthquakes.
Down
- 1. The Earth's continents moving apart
- 3. Caused when tectonic plates suddenly move.
- 4. The movement of the molten rock in the mantle
- 5. Formed by lava coming from eruptions.