Nitrogen and Phosphorus Cycle

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Across
  1. 4. - Rock that stores phosphorus and can release it through weathering.
  2. 7. - Organisms that break down dead matter and recycle nutrients.
  3. 10. - The process of plants absorbing nutrients from the soil.
  4. 12. - The process of bacteria converting nitrates into nitrogen gas.
  5. 14. - The movement of nitrogen through the atmosphere, soil, and living organisms.
  6. 15. - The settling of particles and phosphorus at the bottom of water.
  7. 16. - An element needed to make proteins and DNA.
Down
  1. 1. - The breakdown of rocks that releases phosphorus into soil and water.
  2. 2. - The movement of phosphorus through rocks, soil, water, and living organisms.
  3. 3. - A nitrogen compound produced by waste and decomposition.
  4. 5. - The process of converting nitrogen gas into a usable form for plants.
  5. 6. - The process of converting ammonia into nitrites and nitrates by bacteria.
  6. 8. - Microorganisms that help convert nitrogen into different chemical forms.
  7. 9. - The breakdown of dead organisms and waste, releasing nutrients.
  8. 10. - The process of decomposers converting organic nitrogen into ammonia.
  9. 11. - An element needed to make DNA, ATP, and cell membranes.
  10. 13. - The movement of soil and rock by water, wind, or ice.