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The article presents information on some changes that one can bring in an experiment showing the necessity of sunlight in photosynthesis. These changes reduce the number of embarrassments common with this experiment. In the first step of the experiment each side of a growing healthy leaf are pinned with a thin strips of cork underlaid with black paper. The light-weight flexible paper reduces exposure of the leaf to sunlight by conforms closely to the contour of the leaf's surface and as the paper is black, any stray beams entering will be absorbed. If three pins are thrust through the entire combination at a different angle to each other the cork sheets will be held together more firmly. In second step the previously covered leaf or leaves are boiled in two separate applications of alcohol. In the third step the leaves are boiled in water. In the fourth step the leaves are saturated with alcohol. In the fifth step the leaves are soaked in a strong solution of iodine in alcohol. Finally the leaves are washed twice in alcohol.