What type of liqiuds will cause a penny, a nail, a paper clip, and a sewing needle to rust the fastest?

i am doing a sceince project and i am wondering what i should use for some liquid to rust a penny, a nail, a peper clip, and a sewing needle?What type of liqiuds will cause a penny, a nail, a paper clip, and a sewing needle to rust the fastest?
Pennies won't rust... they're copper over zinc (though copper and zinc will oxidize, it's not really rust). Nails can be plain steel or coated -- you may have to work through a coating of something like zinc or glue. Paper clips, depending on what they're made of, may or may not rust... again, copper oxidizes but doesn't rust, plastic doesn't rust, etc. Sewing needles are typically nickel plated, again to help prevent rust.





Try an oxidizer:


http://en.wikipedia.org/wiki/Oxidizing_a鈥?/a>What type of liqiuds will cause a penny, a nail, a paper clip, and a sewing needle to rust the fastest?
Since this is a science project isn't the point of the experiment not only to show what solution will form rust or corrosion fastest but shouldn't you strive to show comparison s between different solutions.





If you only show one substance and don't have data from other substances to back up your conclusions you will not obtain the grade you are looking for.





It is best that you use several solutions including distilled water verses tap water and then mix different chemicals into the distilled water for comparisons.





The point of experimentation is to show proof of your conclusion backed up with good data. Just knowing the correct answer will not get you an ';A';.
Try water, water with salt, water with calcium chloride, bleach and hydrogen peroxide. Put each item in the different solutions at the same time, each must be in separate containers to avoid electrolysis between the different metals. Record the temperatures and times of each and take pictures as the time progresses. This should give some good results. Have fun.
will a penny rust? i am sure its made of copper. as for the rest they have been dipped in some sort of plate (bar the nail) pop the nail in water with some salt...just a guess mind you.





good luck with you project.





ps you have spelt science wrong.
I'm not sure which is the fastest, but a calcium chloride solution is one that will even cause chrome or stainless steel to rust. A zinc coated (galvanized) paper clip or nail and a polished steel needle will all oxidize rapidly. A penny is copper plated zinc and will still oxidize even though they don't call it rust.
coca cola ,as it is very acidic, as for the penny what metal is it