10-11-11 science lab

In science class today we preformed a lab using iodine. First, we filled a plastic bag with corn starch and water. After we tied a knot in the bag, we placed it in a beaker with water and iodine. After 15 minutes of waiting we took the plastic bag out of the beaker our results were shown. Our lab was successful when the corn starch turned purple because the iodine seeped through the bag. This was what we did today in science.