Across
- 1. The number 5 is what on the pH scale.
- 4. What does Mr. Kennedy breathe?
- 7. What color is the water if a coal mine is near?
- 9. What shows up when anything dies?
- 12. This means "to make".
- 14. What kind of oxygen do fish breathe?
- 15. This means light.
- 16. What causes algae to overgrow?
- 19. This is an acid on the pH scale.
- 20. Nitrates are a _______________
Down
- 2. What is another name for turbidity?
- 3. If I smell rotten eggs, what is in the water?
- 5. Turbidity is a measure of living and __________
- 6. pH measures acid and ____________
- 8. This mineral makes water hard.
- 10. This is one way that d.o. gets into water.
- 11. The process plants use to make food.
- 13. This is a base on the pH scale.
- 17. What makes the water an iced tea color?
- 18. The number 9 is what on the pH scale.