Across
- 6. the water found underground in the cracks and spaces in soil, sand and rock
- 7. a gas that supports life
- 10. a cycle that deals with water
- 12. a cycle by which is converted into multiple chemical forms
- 14. the transition of a substance directly from the solid to the gas state
- 15. when a liquid turns into a gas
- 17. any liquid or frozen water that forms in the atmosphere and falls to Earth
Down
- 1. an important step in the nitrogen cycle in soil
- 2. It is present in water and in almost all the molecules in living things.
- 3. any body of water above ground
- 4. the process of water movement through a plant
- 5. nature's way of reusing atoms
- 8. the loss or removal of nitrogen or nitrogen compounds
- 9. the process by which water vapour in the air is changed into liquid water
- 11. a mineral that makes up 1% of a person's total body weight
- 13. to make fertilisers
- 16. regulate the Earth's temperature