There is no secret that you will not be able to write a good insightful research paper if you are not interested in the subject overall and in the topic in particular. If on the other hand the topic is linked to the field of your interest, you may consider yourself lucky. It would be easier to explore the theme and write about it. You may even find some additional resources on your computer or I cloud service for the topic, which excites you. If you enjoy science, you are sure to talk non-stop about it. The same goes for writing.
The body of your essay will revolve around the ideas that you judge to be most important. Go through your research and annotations to determine what points are the most pivotal in your argument or presentation of information. What ideas can you write whole paragraphs about? Which ideas to you have plenty of firm facts and research to back with evidence? Write your main points down on paper, and then organize the related research under each.
Whenever possible, look for peer-reviewed empirical research. These are articles or books written by experts in your field of interest, whose work has been read and vouched for by other experts in the same field. These can be found in scientific journals or via an online search.
Use clear segues into adjacent points in your paper. Your essay should flow well, rather than stopping and starting in a blunt fashion. Make sure that each of your body paragraphs flows nicely into the one after it.