Normally, chemical compounds (artificialities) are turned into mass production based on human designed forms. With the intention to break loose from this industrial loop, I did some experiments to see if new shapes could be produced based on natural properties of materials. In accordance with the properties and formation methods of the material, I experiment with variables in temperatures and formation times all while carefully observing the materials transformations. Polystyrene, a heat shrinkable chemical compound, and two types of water-based paints which can follow the reshaping of polystyrene are used for this exploration. CRACKS AND SHRINKS is the outcome of all the possible combinations of variables. For example, the heating temperature, the thickness and density of polystyrene, the amount and thickness of the pigment, the humidity and temperature of the surrounding environment, the time that the material been exposed in the air before the heating procedure, and so on. In the end, the material reaches the point that human manipulations fail to achieve, the form of natural objects.