some cases the density of an object may cause the object to become suspended at a certain level within the liquid the ratio of the density of the object to the density of the liquid may dictate the level to which the object is suspended in that particular liquid these principles may be used to separate materials having different densities for example in some embodiments golf ball 100 made from materials having different densities for recycling golf ball 100 may be pulverized into particles then the particles may be added to a liquid having a certain known density the liquid and or the materials may be selected based on their densities in other words the materials and or liquid may be selected based on the levels the particles will float to within the liquid this way the particles can be separated based on the level to which the particles float in the liquid the method of recycling a golf ball is discussed in more detail below with reference to fig6 7 a used golf ball made by any available method may be recycled by the disclosed method of recycling in some embodiments core layer 120 mantle layer 130 and cover layer 140 may be each made from a single type of material or a composition including multiple materials in some embodiments each layer may be made from a thermoplastic such that the materials may be recycled by pulverizing.