Across
- 2. the process of removing salt from water
- 3. the process of removing algae
- 7. tablets things campers use to purify water
- 8. removing particles from water
- 10. a sickness or illness
- 11. these are found in water when it has not been disinfected
- 12. another word for a needle
Down
- 1. killing bacteria so that water is more drinkable
- 4. a substance that fights bacteria
- 5. it is a strong oxidant and main disinfectant for purifying water
- 6. another word for getting a shot
- 9. something that takes over a cell to reproduce