11.
Haven't been on, in one or two weeks because I didn't know what to post about. Nothing has been happening. I'm gonna start my experiment next week, after all the half yearly tests are over. I still need to figure out a way to measure how much stain is left afterwards. I'm not sure :/
Method (to be edited):
1. Cut up white cotton material in to 10cm by 10cm squares
2. ...
omg. i dont know the information. it's on the other computer. might as well write it up tomorrow =="