Water Pollution Crossword

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Across
  1. 2. legislation that sets the national standards for safe drinking water
  2. 4. a dramatic change in water temperature that can kill organisms
  3. 5. a component of a septic system made up of underground pipes laid out below the surface of the ground
  4. 6. used to suck up oil from an oil spill
  5. 10. a distinct location from which pollution comes from
  6. 14. acids deposited on Earth as rain and snow
  7. 17. when a body of water becomes rich in nutrients
  8. 18. A species that indicates whether or not disease-causing pathogens are likely to be present
  9. 20. A naturally occurring heavy metal that can be found in water due to human activities
  10. 24. water pollution that is due to human activities that heats up water
  11. 25. The largest portion of oil contamination in the oceans
Down
  1. 1. Man-made pond lined with rubber to hold manure produced by livestock
  2. 3. a group of harmful chemicals used for rocket fuel
  3. 7. A compound that occurs naturally in Earth’s crust and can dissolve in water
  4. 8. a spread out area where pollution comes from
  5. 9. an area in a body of water with low oxygen levels
  6. 11. a large container that holds wastewater from a house
  7. 12. Name of the oil spill that released about 206 million gallons of oil into the Gulf of Mexico
  8. 13. the middle layer of clean water in a septic tank
  9. 15. if people are connected to a city sewer system, they probably have this to treat their wastewater
  10. 16. a heavy metal that contaminates water as it passes through lead-lined pipes
  11. 19. an act that helps restore the chemical, physical, and biological properties of surface water
  12. 21. A barrier to help contain a oil spill
  13. 22. solid waste material from wastewater
  14. 23. The tanker ship of Alaska that spilled about 11 million gallons of oil