Generally, speaking, there are two types of research paper: an argumentative research paper or an analytic research paper. Each requires a slightly different focus and writing style which should be identified prior to starting a rough draft.
Research paper body is where your outline will come in handy. As you’re writing, remember that your outline isn’t meant to be a prison—it’s a guideline to keep you on track. Your paper may evolve, so keep it fluid, but do remember to stay focused on your thesis statement and proving your points. Don’t let your sources organize your paper! Organize first and use your sources as they become relevant. Consider the Rule of Three. Find supporting arguments for each point you make, and present a strong point first, followed by an even stronger one, and finish with your strongest point.
The introduction is, in many respects, the conclusion written in reverse: start by generally introducing the larger topic, then orient the reader in the area you’ve focused on, and finally, supply the thesis statement. Avoid repeating exact phrases that you already used in the conclusion.
Take a trip to your local library or university library. Although it may seem old fashioned, libraries are chock full of helpful research materials from books to newspapers and magazines to journals. Don’t be afraid to ask the librarian for help either - they are trained in research and know where everything about your topic is located.