crossword

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Across
  1. 2. smallest unit of life
  2. 3. chemical compound is CO2
  3. 6. photosynthesis takes place in this organelle
  4. 8. living organisms need to drink it to live
  5. 9. people and plants need to breathe it in to survive
Down
  1. 1. found in nearly all of the cells in living organism
  2. 2. a green pigment that soaks up radiant energy also gives plants their green color
  3. 4. chemical compound is C6H12O6
  4. 5. required for photosynthesis to occur
  5. 7. the process which a plant use sunlight to make their food