Photosynthesis

12345678910111213141516171819
Across
  1. 3. Iodine solution is used to test for........
  2. 6. The green pigment in leaves.
  3. 8. Photosynthesis is an example of this type of reaction.
  4. 11. This is the variable that is measured in an experiment.
  5. 13. The enrgy for photosynthesis comes from the .......
  6. 14. This is the sugar made in photosynthesis.
  7. 16. Biological reactions take place in ...... things.
  8. 18. Plants take this substance in through their roots.
  9. 19. The tiny openings on the understand of leaves.
Down
  1. 1. During photosynthesis light energy is converted to ........ energy.
  2. 2. The name given to the way plants make food.
  3. 4. This substance removes the chlorophyll from leaves.
  4. 5. This are the variables that remain constant.
  5. 7. The gas produced during photosynthesis.
  6. 9. This is the variable that changes in an experiment.
  7. 10. Photosynthesis is an example of this type reaction.
  8. 12. High temperatures affect the action of these in photosynthesis.
  9. 15. dioxide This gas is needed for photosynthesis.
  10. 17. In a chemical reaction,....substances are formed.