How do plants make food?

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Across
  1. 2. the green color in a leaf
  2. 3. plants absorb this in their roots
  3. 5. plants give off oxygen during photosynthesis
  4. 6. the part of the plant the absorbs carbon dioxide
  5. 7. plants absorb water and give back oxygen
  6. 9. source of energy
Down
  1. 1. change light to food
  2. 4. the part of the plant that absorbs water from the ground
  3. 8. when cold nights and warm days tell the leaf its almost winter