Starting with a research question means approaching your research with curiosity and an open mind. You should let your question guide you both in practical terms of helping you come up with search terms (keywords) as well as in avoiding bias by assuming you know the outcome or answer.
Check out this tutorial from Arizona State Libraries to get started:
Watch this short video from NC State University Libraries about choosing a research topic.
This graphic emphasizes how reading various sources can play a role in defining your research topic.
You will need to use keywords to search for information online and in library resources. Follow this guidance to identify keywords that will be useful for searching.
Step one not only requires that you come up wth a research question or topic that is narrow enough to explore for an undergraduate research paper, but it also requires that you consider what type of information you will need to find in order to answer your research question.
Mount Hood reflected in Mirror Lake, Oregon, USA. Image in Public Domain.