Hi, I am doing a chemistry lab writeup, and I have an issue with my loss in mass. I measured the mass lost by plastics exposed to various pH levels (sulfuric acid conc's) and I have conclusive results. The expected patterns are visible in the results; however, since the pieces of plastic were weighed using a milligram balance, and the maximum mass loss is around 0.007g, the uncertainties outweigh the observable patterns. Thus, if I am to use significant digits and show all of the uncertainties, the patterns will not show up and will make the results inconclusive, even though I know they are not. What exactly should I do? All help is immensely appreciated. M.