Across
- 4. Hot molten rock below the surface of the Earth
- 6. Instrument by which earthquakes are measured
- 8. If a particular area receives less or no rain than normal for a long period of time
Down
- 1. Hot molten rock above the surface of the Earth
- 2. A person who studies earthquakes
- 3. A sudden shaking of the ground caused by movements deep in the Earth
- 5. A vertical tunnel below the surface of the Earth
- 7. Tidal or strong waves