Select a general topic that is something related to the course, but also something that you are interested in. Ensure that the topic you choose is something you can relate to and spend hours researching without hesitation. Narrow your topic from a general idea to something specific and ensure that you have an actual thesis -- a central argument or hypothesis -- that you can associate with this topic.
Research your thesis based on the problem that you are trying to explain. For example, a thesis paper on what causes global warming would require research that supports your reason for why you state global warming occurs.
Create an abstract for your thesis. Keep your abstract to one line that defines why your thesis is important. Continue your abstract by answering the following questions: What did you do to prove this? Why did you research it that way? What methods did you use to prove your thesis? What are the results of your thesis? Why do the results of your thesis matter to the public? Remember that a thesis paper does not have to prove that your argument is correct or true; it can prove that it is false as well.
Write the paper based on the audience who will be reading it. For example, if your thesis will be read by a panel of scientists, then use scientific terminology and language that they understand.
Write the paper to be an argument for your thesis and use factual evidence to support your thesis throughout the paper.
Write your introduction last. The introduction is based on the body of the paper and the research you collected; therefore, it cannot be written until the rest of the paper has been completed.
Create a table of contents that clearly outlines the introduction, tables and figures, your research methods, results from that research, discussions, conclusion to your thesis, recommendations and any resources cited.