Across
- 4. a swirling movement
- 6. a series of events or processes that repeats over and over
- 7. spread out
- 9. the process in which a substance warms and changes from a liquid into a gas
- 11. water in the atmosphere
- 13. a human-made place to collect and store water
Down
- 1. a slow moving body of ice on land
- 2. the process in which a gas cools and becomes a liquid
- 3. underground water supply
- 5. cycle the continuous movement of water on Earth
- 8. the amount of salt dissolved in water
- 10. the original or most important
- 12. pattern of rising and falling water in the ocean caused by gravity