The effects of using different ball clays on the physical properties of the standard body have been shown. Although variations in all of the physical properties can be attributed to the use of different ball clays, these variations are more pronounced on the compressive strength properties. Since feldspar mainly controls fired shrinkage and fired absorption, and since the same amount of feldspar was used in each body, the effects of using different ball clays on these physical properties were not so pronounced. / Master of Science