Carbon Cycle

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Across
  1. 3. this is known as the element of life
  2. 6. this gas is a reactant of photosynthesis and a product of cellular respiration
  3. 7. an important ingredient to photosynthesis, all of Earth's energy comes from this
  4. 10. this is how plants convert water, carbon dioxide into sugar and oxygen using sunlight as the energy source
Down
  1. 1. fungi and bacteria break down dead organisms and waste releasing organic compounds
  2. 2. this is how organisms convert oxygen and sugar into ATP energy
  3. 3. the burning of fossil fuels
  4. 4. dead organisms can fossilize over thousands of years
  5. 5. a form of pure carbon
  6. 7. purpose of photosynthesis is to create Glucose, another name for glucose is
  7. 8. how do fossil fuels get released back into the atmosphere through combustion?
  8. 9. organisms fossilized over many years form these