Nutrient cycles

4. The most basic way plants will take in nitrogen, the simple mac and cheese.
7. The fancy molecule of nitrogen that plants use, the lobster mac and cheese.
8. The process plants use to make their food.
9. How gaseous water turns back to a liquid.
12. The process of dead organic material breaking down.
14. One of the key elements for life, all organic material is made from molecules with this.
16. The continuous flow of carbon through a system.
18. When a form of water falls from the sky.
19. The process in animals that exhales carbon dioxide.

1. Carbon dioxide is an example of a gas that traps the suns heat.
2. The draining away of water from a surface.
3. Water vapor that is released by plants.
5. How liquid water turns to a gas.
6. The most abundant gas in the atmosphere, about 78% in total.
10. When bacteria remove nitrogen and send it back to the atmosphere as a gas, the cheeseless noodles or bacteria farts.
11. Water held underground in the soil.
13. The continuous movement of water around the Earth.
15. The remains of organic material that is burned for energy.
17. Bacteria convert nitrogen into a usable form for life.