Across
- 1. Movement of water in the sea
- 4. Molten rock which has erupted
- 5. Large plates under the earth's surface
- 7. Hot water vapour
- 8. Sea bird with a colourful beak
Down
- 2. A mountain that erupts
- 3. Natural disaster where the ground shakes
- 6. Solid state of water
- 7. White flaky frozen water