Cycles of Matter

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Across
  1. 6. The process by which cells use oxygen to produce energy from glucose
  2. 7. Building block for the matter that makes up the bodies of living things
  3. 8. bacteria that convert nitrogen in the air into forms that can be used by plants and animals
  4. 12. The process by which green plant cells convert light energy from the Sun to chemical energy by changing carbon dioxide and water to glucose (sugar) and oxygen
  5. 14. water from rain, snowmelt or other sources that flows over the land surfaces
  6. 15. the process by which a gas changes to a liquid
Down
  1. 1. loss of water from a plant through its leaves
  2. 2. the cycle in which nitrogen gas is changed into forms of nitrogen that plants can use
  3. 3. the falling to earth of any form of water (rain, snow, hail, sleet or mist)
  4. 4. the process of breaking down the remains of dead plants and animals, returning their nutrients to the environment
  5. 5. water found underground
  6. 9. the process by which liquid water molecules absorb energy and change to a gas
  7. 10. the movement in nature of water from the surface of Earth to the atmosphere and back
  8. 11. bumps on the roots of certain plants that house nitrogen-fixing bacteria
  9. 13. process of converting nitrogen gas into nitrogen compounds that plants can absorb and use