The work involves the evaluation of rheological properties of clay materials. the experiment will the measurement of rheology on different grades of laponites. the materials to be used are laponite JS, laponite RD, laponite RDS, laponite S-482, laponite SL- 25, and laponite EP and the quantity will be measured in grams. in this experiment, rheology measurement will be performed on different grades of laponites in concentration ranging between 1-10% (w/v) Rheology experiment will be performed by taking 1ml of the prepared solution and transferring the lower geometry of the rheometer. the polymer viscosity will be examined as a function of the shear rate from 0.1-100 S-1 using 3mm geometryA 25ºC.