This science fair project was performed to compare the water resistant properties of different types of fabrics. The tests were done using fabrics made of cotton, silk, linen, wool, polyester and nylon. Tests were also done with and without applying Scotch Guard coating.
1. For this science fair project, the independent variable is the use of Scotch Guard and the type of fabric tested - cotton, silk, linen, wool, polyester and nylon . The dependent variable is the amount of water absorbed by the fabric. This is determined by measuring the weight of the fabric before and after wetting the fabric. The constants (control variables) are the size of the fabric, the elevation of the ramp and the amount of water dispensed. 2. The twelve pieces of cloth are cut into the same size and their weight is checked on the digital weighing .....
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