Photosynthesis cross word

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Across
  1. 3. Respiration - using oxygen to release the energy in food
  2. 4. Dioxide - gas necessary for photosynthesis and made by respiration or burning
  3. 6. - tiny part inside a cell
  4. 8. - an organism that makes its own food
  5. 13. - how plants make food from sunlight
Down
  1. 1. - part of the cell that absorbs sunlight and carries out photosynthesis
  2. 2. - green chemical that absorbs sunlight
  3. 5. - an organism that makes its own food
  4. 7. - type of sugar
  5. 9. - gas made by photosynthesis and necessary for respiration
  6. 10. - to put together
  7. 11. - light
  8. 12. energy - what plants use to create food