Across
- 3. trace elements that can be toxic in small amounts
- 5. H2O molecule
- 7. cause "blue baby syndrome," found in fertilizer
- 8. the amount of suspended sediment (3 words)
- 12. a process using evaporation that cleans water
- 13. a measure of water clarity
- 14. a tool that measures water clarity (2 words)
Down
- 1. an element in fertilizer that causes algal blooms
- 2. a process of passing water through layers to clean it
- 4. a measure of pH
- 6. makes freshwater from salt water
- 9. insects
- 10. the amount of salt in water
- 11. amount of oxygen carried in water (2 words)