1. Obtain a leaf sample with areas where chlorophyll is absent and present.

2. Boil water in beaker.

3. Subject leaf to beaker for 20 seconds.

4. Submerge leaf in boiling ethanol using water bath for 2 minutes (removal of chlorophyll).

5. Soften leaf with cold tap water

. 6. Flatten the leaf on the tile.

7. Drop enough iodine solution to the whole leaf

8. Indicate areas with or without starch.