Hydroponics

3. a flowering plant's unit of reproduction, capable of developing into another such plant.
6. A scale that measures the relative acidity or alkalinity of a solution.
7. substance or material in which something exists or grows.
8. to produce plantlets by taking cuttings.
10. absorption of water an inorganic nutrients.
12. method of growing plants in water without soil.
13. a mature ovary
14. the ability of water to neutralize acid or to absorb hydrogen ions.
16. the level or acid in substances such as water or soil.
17. Where the fluid is stored in a hydroponic system that pumps a nutrient solution to plants.

1. the embryonic root
2. the protective outer covering of a seed
3. a young leaf springing from the main stock of a plant.
4. special type of diffusion when water is absorbed by the seed and increases in volume.
5. a young, developing plant, such as the rudimentary plant inside the seed.
9. begins when a seed is given water and the temperature is adequate for non-dormant seeds.
11. the process by which plants use light energy to collect carbon dioxide from the atmosphere and convert it to chemical energy in the form of sugar.
15. functions as a principal organ of photosynthesis