water quality

3. a rapid increase in phytoplankton as a result of excess nutrients in the water/can serve as a bioindicator of water quality
9. single, identifiable sources of pollution (In the case of water pollution, examples of point source pollutants might include a pipe, factory releasing pollutants into the water, etc.)
10. inorganic compound created by the removal or replacement of one, two, or all three hydrogen atoms in phosphoric acid; used in fertilizers and detergents and is a major cause of water pollution
11. groundwater contaminant that oftentimes enters the groundwater through fertilizers, animal wastes, and sewage
12. Organisms that indicate the health of a water ecosystem
15. any of various mechanical, physical or biological operations that separate solids from fluids (liquids or gases) by adding a medium through which only the fluid can pass

1. the degree or intensity of heat present in a substance
2. creating favorable conditions in water so that particles will stick together
4. oxygen found in water; the higher the amount of dissolved oxygen, the healthier a water system is for organisms
5. Hydrogen) A measure of the acidity or basicity of a substance; measured on a scale from 1-14 with the lower numbers representing the highest acidity
6. excessive nutrients (usually nitrates and phosphates from run-off) in a lake or other body of water, which causes a dense growth of plant life and death of animal life from lack of oxygen
7. how clear or cloudy water is; water with a high turbidity is more difficult to see through
8. pollution that occurs from unidentifiable sources
13. the process of cleaning something, especially with a chemical, in order to destroy bacteria
14. the action or process of a liquid changing to a solid or semi-solid state