Expirimenting with Iodine

During the last week in Science class we have started learning about chemical changes and how chemical chages are shown in expiriments. We learned what is a difference between a physical chnage and a chemical change. For example a example of a physical chnage is the changing of water from Ice to liquid water and to evaporation. An example of a chemical change could be when fine metal comes in contact with water it will start rusting, this is a chemical change. After this, we have started a class lab which involved of mesuring vitamin C in certain objects. We used Iodine to determine how much vitamin C is in a certain object. Know when we have skilled this lab we are beggining to create our own lab which will include vitamin c an measuring of how much vitamin c will a certain object have in it, to deterime this we will use i our labs Iodine. For example my lab will be on based does a mandarine or a normal orange which one has more vitamin C in it.