Across
- 5. Nitrogen compounds are involved in eutrophication(too many nitrates leads to less oxygen which leads to fish death)
- 6. Organisms that are used to monitor the health of an environment (algae on rocks-if they disappear, the environment isn't healthy)
- 7. When the atoms or molecules of a substance stick to another substance
- 9. The production and emission of light by a living organism
- 11. Water's tendency to climb up a tube or sink into small cracks
- 14. is the excessive richness of nutrients in a lake or body of water
- 15. the relationship between the mass of the substance and how much space is taken
- 18. Water dissolves most substances(more than any other substance)
- 19. being a good citizen. pick up trash, recycle, and protect environment)
- 20. measure of the degree to which the water loses its transparency due to the presence of suspended particulates
Down
- 1. water sticking together on the surface or around a drop
- 2. When the atoms or molecules of a substance stick together
- 3. a polluting or poisonous substances that make something impure
- 4. the amount of gaseous oxygen dissolved in water
- 8. molecule with opposite charges-a positive and a negative end
- 10. a rapid increase in the population of algae in an aquatic system; occur in freshwater or marine environment
- 12. the chemical bond in which a hydrogen atom is attracted to an atom. It is responsible for many of the properties of water
- 13. fertilizers(as plant nutrients) and in detergents(water softeners), phosphates are a major source of water pollution
- 16. how quickly a substance heats up
- 17. the chemical, physical, and biological characteristics of water; determine its uses