The purpose of this experiment is to determine whether powdered laundry detergent or liquid laundry detergent will work better on two common stains. To do this project one must obtain six pieces of cotton jersey of equal size. Fold them lengthwise. Pour one ml oil on three and one ml mud on the other three. Mark C, L, and D each on one piece of fabric for each stain. Place the control fabrics (C) into the washing machine and wash it as a small load. When that is done take out the C fabrics and replace them with the L fabrics. Wash them as a small load with 50-ml liquid detergent. When those are done place them next to the C fabrics. Wash the D fabrics as a small load with the 50-ml powder and 400 ml water solution. When that is done place all six pieces of fabric in the dryer and dry them. Now compare the stains left on the fabrics.
In both trials all oil stains started at four. The powder detergent reduced its average rating to a 0.75. The liquid left an average of no stain, and the controls left an average of 3.75. In both trials all of the mud stains started at four. The powder brought the stain down to 1.25 on average. The liquid gave an average of 1.5 and the control left on average a rating of 3.5.