Water Crossword

3. Mass per unit volume
6. The change of a substance from a liquid to a gas
8. The change of state from a gas to a liquid
9. The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius
15. A nonliving part of an organism's habitat.
16. a liquid substance capable of dissolving other substances
17. he emission of water vapor from the leaves of plants
18. A system in which matter can enter from or escape to the surroundings.

1. The transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere
2. A living part of an ecosystem
4. The continuous process by which water moves from Earth's surface to the atmosphere and back
5. The process by which cells break down simple food molecules to release the energy they contain.
7. the falling to earth of any form of water (rain or snow or hail or sleet or mist)
10. The organic circulation of carbon from the atmosphere into organisms and back again
11. An instrument for determining the salinity of salt water by the density of solids and liquids by flotation.
12. An attraction between molecules of different substances
13. Plants use the sun's energy to convert water and carbon dioxide into sugars and oxygen
14. Attraction between molecules of the same substance
19. The total amount of dissolved salts in a water sample.