Materials

• HCL
• NaOH
• test tubes
  
• 3 pairs of blue jeans
• pipettes
  

Procedure

I will use three pairs of worn jeans to test my hypothesis. One will have several different concentrations of NaOH applied to it and another will have several concentrations of HCl applied to it. The effect on the color of the jeans will be compared to each other and to the third pair of jeans which will be used as a control.