Across
- 4. water stored in caves and rivers underground
- 7. large areas of salt water
- 9. artificial lakes made by people
- 11. a lake of water made by building a wall across a river
- 12. an area of fresh water on the land
- 14. a system of pipes and tanks where water is purified
- 16. water in the oceans and seas
Down
- 1. natural wet areas usually next to streams and rivers
- 2. a deep hole that people dig to get underground water
- 3. tank where farmers store water for animals
- 5. small areas of salt water
- 6. water that people and animals can drink
- 8. buckets, bottles, boxes
- 10. made clean
- 13. small rivers
- 15. something that we need and use