In biology the sophomores were boiling leaves and seeing how much starch was in them. They Boiled a leaf that was in the sun and one that was covered by tin foil. After the leaves were boiled and lost most of their color then they put a few drops of iodine in them. The magic started a appear and the leaves started to get dark and show wear the iodine was at in the leaf.
This is a picture of a drawing of a leaf that we colored with iodine.