Across
- 3. is the smallest partical of an element
- 4. water is wet and fluid
- 5. water underground
- 9. meter measure the amount of water
- 12. kills any germs in water
Down
- 1. ice 2%
- 2. water is frozen water
- 6. first people to record methods for treating water
- 7. water is frozen water
- 8. surface is covered with water 70%
- 10. travels over the surface and fills lakes and rivers
- 11. reader reads the water meter
- 13. fresh water 1%