Coming up with a research question can be challenging, but it's all part of the research process. In some cases, your instructor may give you a topic or in other cases, you may join a lab that is already working on a project with a defined research question, but if you are on your own, this page will give you some guidance.
Part of coming up with a manageable research question is also knowing what your "information need" is. In other words, what kinds of sources do you need to help you answer your question. See the page for step 4, "Read & Evaluate" for more info about determining if a source is scholarly or popular.
Tip: Remember that the research process is non-linear and sometimes messy. You will need to search for and read (or at least skim) some information sources to know if your research question is going to be manageable. Skip to step 4 for some reading tips!