Science Buddies: "Ask an Expert"

Can I use the same research paper I used last year? Because my experiment this year is very similar to the one I did last year and I already have the research from my old experiment. Would it be considered plagiarizing or is it ok to use it 'cause it'd be hard to find different information on the same thing twice.

You can reference the same paper you referenced in a previous project. Scientists often do this when they publish new papers, as they tend to build upon their provious work and still need to explain the background.