Environmental Science Crossword Puzzle

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Across
  1. 3. A solution with a pH lower than 7
  2. 4. A substance that forms as a result of a chemical reaction
  3. 7. Is a substance that consists of two or more elements
  4. 10. It is the unit of power
  5. 11. The study of the interactions between lifeand its physical environment.
  6. 13. Is a key cultural aspect that is embedded in people’s way. of life.
  7. 14. Is a common chemical substance on planet Earth
  8. 16. The outer mantle of the solid earth.
  9. 19. An energy that possesses due to its motion
  10. 20. Is the study of energy
  11. 23. Developing new knowledge based upon old knowledge.
  12. 24. A solution with a pH higher than 7
  13. 26. The protective blanket of gases surrounding the Earth.
  14. 27. Is done when force is applied to an object over a distance
  15. 28. The act of noting or detecting phenomenon by the senses.
Down
  1. 1. A test that is used to rule out a hypothesis or validate something already known.
  2. 2. Comprises all types of water resources
  3. 3. Is the smallest particle of an element
  4. 4. Is the rate at which energy is used
  5. 5. The sum of all biochemical reactions in an organism
  6. 6. Is a pure substance
  7. 8. Is anything that takes up space and has mass
  8. 9. Is the main element in organic compounds
  9. 12. A substance that starts a chemical reaction
  10. 15. An energy that depends upon the relative position of various parts of a system
  11. 17. It is a systematic body of knowledge.
  12. 18. A widely accepted hypothesis that stands the test of time.
  13. 21. It means knowledge.
  14. 22. Where life operates.
  15. 25. Is the ability to do work