Water Crossword - Spring 2014

1234567891011121314151617181920212223
Across
  1. 1. A microrganism that is commonly found in untreated surface water and can be removed by filtration. It is resistant to disinfectants such as chlorine.
  2. 3. Chains of organic molecules produced by the joining of primary units called monomers.
  3. 4. A spillover device used to measure or control the amount of water flowing through a treatment process or an aqueduct.
  4. 7. An insoluble reaction product; in an aqueous chemical reaction, usually a crystalline compound that grows in size to become settleable.
  5. 8. Periods of time when there isn't any rain or precipitation.
  6. 10. The name for a well that is drilled into a confined aquifer in which water is under pressure and pushes to the surface without a pump.
  7. 13. A barrier, usually thin, that permits the passage only of particles up to a certain size or of specific nature.
  8. 14. A process for killing pathogenic organisms by heat applied for a critical period of time.
  9. 16. The precipitate that forms on surfaces in contact with water as the result of a physical or chemical change.
  10. 17. The process of agglomerating coagulated particles into settable flocs, usually of a gelatinous nature.
  11. 18. Any inorganic or fossilized organic material having a definite chemical composition and structure found in a natural state.
  12. 19. Physical adhesion of molecules or colloids to the surfaces of solids without chemical reaction.
  13. 22. When a vapor or gas changes into a liquid.
  14. 23. A layer of gravel, sand, and limestone, in which water passes through, fills up, and is stored.
Down
  1. 2. Assimilation of molecules or other substances into the physical structure of a liquid or a solid without chemical reaction.
  2. 5. A water cycle stage where water turns to gaseous form.
  3. 6. Type of bacteria found in the intestinal tract of warm blooded animals and used as indicators of pollution if found in water
  4. 9. A chemical reaction that produces a resulting environment that is neither acidic nor alkaline.
  5. 11. A device that introduces compressed air into a liquid; used to strip dissolved volatile organic compounds and to facilitate aerobic biodegradation of organic compounds.
  6. 12. A man-made passageway that carries water from one place to another.
  7. 15. The process of separating solids from a liquid by means of a porous substance through which only the liquid passes.
  8. 20. Cylindrical metal or plastic tubes that are used to transport water from one place to another.
  9. 21. The area of land that drains into a river, lake, stream, bay, or other body of water.