Cycles quiz

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Across
  1. 2. Matter that comes from living organisms
  2. 5. Nitrogen cycle step where plants build organic molecules
  3. 8. Process where particles settle at the bottom of water
  4. 9. Water cycle process forming vapor
  5. 10. Nitrogen cycle starting step
  6. 12. Nitrates convert back into nitrogen gas
  7. 14. Energy molecule produced during respiration
  8. 18. Burning process that releases carbon dioxide
  9. 19. Water vapor cools and forms clouds
  10. 22. Ammonia is converted into nitrates
  11. 23. Element involved in photosynthesis respiration and combustion
  12. 24. Carbon cycle process where plants produce food
  13. 25. Water cycle step where liquid turns into gas
  14. 27. Water gathers in oceans rivers and lakes
  15. 28. Molecule that moves through evaporation condensation and precipitation
Down
  1. 1. Water cycle process involving rain
  2. 3. Process that releases energy from food
  3. 4. Variety of life in ecosystems
  4. 6. Water falls from clouds to Earth
  5. 7. Organic nitrogen becomes ammonia
  6. 11. Phosphorus cycle step where plants take nutrients from soil
  7. 12. Breakdown of dead organisms in cycles
  8. 13. Nitrogen gas is converted into ammonia
  9. 15. Element released by weathering of rocks
  10. 16. Carbon and nitrogen cycle process breaking down organisms
  11. 17. Animals obtain nutrients by eating plants or other animals
  12. 19. Water cycle process forming clouds
  13. 20. Nitrogen combined with oxygen used by plants
  14. 21. Element that goes through fixation nitrification and denitrification
  15. 26. Process that breaks down rocks releasing phosphorus