Science Buddies: "Ask an Expert"

im doing a project on how sugarwater, saltwater, vinager, and tapwater effect the rate off rusting on nails. im stuck and need some help?

I would suggest that you put a regular nail into each kind of solution and check everyday to see how much rust is covering the nail. I would measure it in terms of the fraction or precentage that is covered with rust. Then make a plot of the percentage covered for each solution with the x axis being the number of days since the project started.