A STEM capstone course is an excellent idea to get students interested in pursuing a STEM career. Students enjoy researching the latest in technology and medical advances. What I have done in my courses is give students a good, basic article in a recent discovery. I ask them to read, summarize and respond to the article. Part of their summary includes giving at least three possible research questions. Then each student presents what they have learned to the whole class. After their presentations, I compile all of the possible research topic questions and let them choose which one they want to pursue. Many of the articles and questions I have listed on my science and technology topic articles are generated by my students or in class discussions. Most of these questions have been used by my students to write a research paper. You can have your students use my article here and my technology article to get a start. Then for instructions in writing, you are welcome to have them look at my articles about writing research papers.