Cycles

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Across
  1. 2. The process where water runs over the surface of earth - ex. Snow melting
  2. 4. water as a liquid turns into water vapors because it heats up.
  3. 6. happens when there is too much nitrogen in the atmosphere
  4. 7. nitrogen is needed for plants so farmers add________
  5. 8. carbon is released back into the soil
  6. 10. dissolved in water are absorbed by the plants
  7. 13. Ice turns into water vapor without turning into liquid first
  8. 15. The water seeps down deep in the ground
  9. 16. release carbon into the atmosphere
  10. 17. Nitrogen in the air can become usable or “________” through lightning strikes
  11. 18. Water vapor cools into liquid droplets as it changes temperature
Down
  1. 1. water stored under the soil after rain
  2. 3. plants use carbon in the atmosphere
  3. 5. regulates the temperature of the surroundings
  4. 9. carbon enters the atmosphere as what
  5. 11. Water is absorbed by the plants and extra is emitted as water vapor through stomata
  6. 12. causes phosphorus in rocks to break down
  7. 14. The water vapor that has condensed returns to earth by rain, hail, etc.