Across
- 3. the action or process of a liquid changing to a solid or semi-solid state
- 5. creating favorable conditions in water so that particles will stick together
- 8. groundwater contaminant that oftentimes enters the groundwater through fertilizers, animal wastes, and sewage
- 10. the process of cleaning something, especially with a chemical, in order to destroy bacteria
- 12. Source Pollution: 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.)
- 14. Source Pollution: pollution that occurs from unidentifiable sources
- 16. the degree or intensity of heat present in a substance
Down
- 1. Organisms that indicate the health of a water ecosystem
- 2. how clear or cloudy water is; water with a high turbidity is more difficult to see through
- 4. bloom: a rapid increase in phytoplankton as a result of excess nutrients in the water/can serve as a bioindicator of water quality
- 6. the process of settling or being deposited as a sediment
- 7. 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
- 9. taking care of something
- 11. 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
- 12. (percent 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
- 13. Oxygen: oxygen found in water; the higher the amount of dissolved oxygen, the healthier a water system is for organisms
- 15. 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
