Capillary driven processes (those processes that reduce the total interfacial energy) lead to densification and grain growth in granular systems. This laboratory exercise is intended to provide a concrete demonstration of a capillary driven process (sintering) that occurs in the solid state. The experiment is a recreation of the model sintering experiment originally conducted by Alexander and Balluffi. The original account of their work can be found in: B.H. Alexander and R.W. Balluffi, "The Mechanism of Sintering in Copper" Acta Met. 5 [10] (1957) 666-677.