Nitrogen Cycle

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Across
  1. 3. what plants and animals need nitrogen to make
  2. 4. what plant has roots with nitrogen fixing bacteria
  3. 8. the process of nitrogen moving through different spheres of Earth
  4. 9. the process that fixes nitrogen making possible for plants to absorb it
  5. 10. fixed Nitrogen is in this and farmers add it to their crops
  6. 11. the organisms get their nitrogen by eating
Down
  1. 1. a term used to describe nitrogen that is in the atmosphere
  2. 2. plants take in this type of nitrogen
  3. 4. fixes nitrogen in the atmosphere
  4. 5. the state nitrogen is in before it is fixed
  5. 6. this helps change nitrogen in the soil so that it may be used by plants
  6. 7. what gas is 78% of the atmosphere?