That’s the purpose of this kind of assignment. Start with an area of interest, focus it to something more specific, identify a central question/thesis, and back it up (or try to) with research (published, independently conducted, or informal.) For a high school assignment (which I assume this is), informal research would probably be sufficient if it’s not for a science class.
Start by considering the three questions above - you should focus on only one of the three, formulate your own thesis (it is safer – or it is not safer)…and try to back it up (“because…x, y, z” and/or “it does not appear to be, given evidence a, b, c.”)