Biogeochemical Cycles

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Across
  1. 4. When water vapor cools down and forms clouds.
  2. 7. The cycle that makes rain fall and fills our rivers.
  3. 9. The vital gas we need to breathe, produced by plants.
  4. 10. An invisible gas that makes up most of the air and helps plants grow strong.
Down
  1. 1. Any form of water that falls from clouds, like rain or snow.
  2. 2. The special process plants use to make their own food using sunlight.
  3. 3. An organism that eats other organisms to get energy.
  4. 5. When water turns into vapor and rises into the sky.
  5. 6. Tiny organisms like bacteria and fungi that break down dead matter.
  6. 8. The element that plants "breathe in" and animals "breathe out."