Science Activity at Orchids The International School-Thane,one of the finest CBSE schools besides Majiwada, was held for Grade IVA & B in lesson “Green Plants” was held on 7/9/15.The objective of the activity was to show the students practically how plants store their food in the form of starch. The teacher used potatoes and iodine solution to perform the activity. She sliced a potato into two and then put a few drops of iodine solution onto the cut side. Students observed that the color turns bluish black indicating the presence of starch. Students clarified their doubts and were able to grasp the concept well.