Across
- 1. water stored under the surface of the Earth
- 3. water can absorb into the ground and become _______
- 5. Carbon moves from the atmosphere to plants
- 6. water that falls from the atmosphere in the form of rain, sleet, snow, hail, or freezing rain
- 11. Process where water moves above, on, and below the Earth's surface
- 14. when plants use water to help make energy, and they also lose some water to the surrounding air
- 16. Carbon moves from plants to animals
- 17. The ammonium salts are absorbed onto clay in the soil and then chemically altered by bacteria
- 19. as dead plants and animals decompose, nitrogen is converted into inorganic forms such as ammonium salts (NH4+) by a process called _______
- 20. _______ splits n2 atoms
Down
- 2. Carbon moves from living things to the atmosphere
- 4. Carbon moves from _____ to the atmosphere when fuels are burned
- 7. ________ get nitrogen they need by consuming plants or other animals that contain organic molecules composed partially of nitrogen
- 8. _______ need nitrogen to grow
- 9. process which water is converted from its liquid state to the gaseous state
- 10. Most of the earth's _____ is in the atmosphere
- 12. process which water vapor is changed back into liquid water
- 13. water can become _______ when it flows along the surface into lakes, rivers, and streams
- 15. Carbon moves from the atmosphere to the ______
- 18. Carbon moves from plants and animals to _____
