Across
- 1. partially melted snow or ice
- 4. separates waters flowing to different rivers
- 7. a thick cloud of tiny water droplets
- 9. a colorless and odorless, reactive gas that we breath
- 10. ice crystals formed on the ground or any other substance
- 11. moisture that falls from the sky
- 13. a substance diffused in the air
Down
- 1. water vapor froze into crystals
- 2. a colorless and odorless, highly flammable gas
- 3. frozen water
- 5. a long high sea wave caused by an earthquake
- 6. a barrier constructed to hold back water
- 7. an overflowing of a large amount of water
- 8. a colorless, tasteless, and odorless liquid
- 12. an invisible gas that surrounds the Earth