Cycles

2. The process where water runs over the surface of earth - ex. Snow melting
4. water as a liquid turns into water vapors because it heats up.
6. happens when there is too much nitrogen in the atmosphere
7. nitrogen is needed for plants so farmers add________
8. carbon is released back into the soil
10. dissolved in water are absorbed by the plants
13. Ice turns into water vapor without turning into liquid first
15. The water seeps down deep in the ground
16. release carbon into the atmosphere
17. Nitrogen in the air can become usable or “________” through lightning strikes
18. Water vapor cools into liquid droplets as it changes temperature

1. water stored under the soil after rain
3. plants use carbon in the atmosphere
5. regulates the temperature of the surroundings
9. carbon enters the atmosphere as what
11. Water is absorbed by the plants and extra is emitted as water vapor through stomata
12. causes phosphorus in rocks to break down
14. The water vapor that has condensed returns to earth by rain, hail, etc.