I know #10 is a lie. Brooke and I did a science fair project and it was on how to remove rust w/o chemicals. We used lemon, vinigar, sand and she wanted to try coke. They all did something but the coke, which did nothing. By the way she won for her school went to parish and won their and then went to Bossier for District, but did not win. I do not want any part of that again. Lots of work.