Properties of Water

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Across
  1. 5. when plants absorb nitrates or animals eat plants to get nitrogen
  2. 6. when bacteria and lightning turn nitrogen into ammonia
  3. 9. the rocky part of the Earth
  4. 10. plants pull carbon dioxide to make food
  5. 11. a mixture of gases that surrounds a planet
Down
  1. 1. fungi and bacteria break down waste and decaying remains
  2. 2. burning wood, fossil fuels, or organic matter releases stored carbon
  3. 3. plants and animals break down food for energy and release carbon dioxide.
  4. 4. composed of all living things
  5. 7. bacteria turn ammonia into nitrates
  6. 8. the portion of the Earth that is water