Environmental Chemistry Crossword

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Across
  1. 1. Litmus at pH 6-8 is_____.
  2. 3. A neutralization reaction that uses lime
  3. 5. DDT
  4. 11. Calcium carbonate
  5. 15. Red litmus to blue
  6. 17. Vehicle exhaust cars are equipped with________.
  7. 18. Substances that change colour when the acidity changes
Down
  1. 2. Acid_____causes buildings to corrode
  2. 4. The concentration of pesticides in higher levels of food chains
  3. 6. Growing crops without the use of pesticides and commercial fertilizers
  4. 7. The reaction between an acid and a base
  5. 8. levels Most food chains consist of four__________.
  6. 9. DDT is_____as it moves up the food chain
  7. 10. Blue litmus to red
  8. 12. The pollutants from smokestacks and vehicle exahust
  9. 13. Papers with a combo of indicators to give a colour range that matches a pH range
  10. 14. Foods produced without genetic modification
  11. 16. Pests can become_____to pesticide, so they no longer work