The experiment was quite successful.  We started out and by day 1 we already had a few results.  We put mild steel nails into plastic cups with different substances in them. We then took them out and put them into pieces of paper towel. We did this at the same time every day for a week and had our results. Over the week some of the metals kept rusting. By the end of the week, the ammonia did nothing to the nail. The ammonia and vinegar discoloured the nail. It also created chemical reaction. The ammonia and water rusted quite a bit. The water just rusted the nail. The vinegar and the vinegar/water made a chemical reaction with the nails.  We don’t know what it was. The nails changed color to a brownish-red. And there were clumps of a black substance smeared onto the nail. The ammonia and vinegar did the same thing but it took almost six days longer. Our conclusion? We found that water, and water/ammonia, out of all the substances, did the most. The only reason the other substances did anything was because we combined them with other substances. It was surprising because water is the neutral between acids and bases.