by Ariel Vilidnitsky
For STEM concentrators, writing assignments in non-science courses may sometimes feel a bit removed from the academic work you’re asked to do in your science courses. But while it may not seem like it at first, many of the skills you develop in learning to write, say, a literary analysis or a lens paper actually translate very usefully to science writing. The subject of your writing might be very different, but the strategies for analytical writing are very similar.
You’ll likely remember from your Expos class that the first step to developing a strong argument for your essay is to ask the right analytical question. The same is also true for science writing. In some cases, the analytical question may be given to you in the prompt for the assignment. For instance, your instructor may ask you to intervene in a specific scientific debate by analyzing research papers from both sides and deciding which theory, if either, is more compelling. For other assignments, such as a grant proposal, you will need to develop your own research question that addresses some knowledge gap in the field.
Just as you would in a non-science paper, you will introduce your research question in the introduction of the essay. To better illustrate this similarity, consider the two excerpts from introductory paragraphs given below, one from an Expos paper about a film and the other from a grant proposal for a neuroscience course.
The analogous portions of the two introductions have been highlighted in different colors. The essay’s hook is in purple, the background information is in yellow, and the analytical question—or knowledge gap—is bolded. We can see that, though each essay focuses on a very different topic, the purpose and organization of the introductions remain the same.
Whether you are writing a humanities paper, a social sciences paper, or a science paper, the last part of your introduction will be the thesis, which is essentially your answer to the analytical question. The thesis for a science paper may look a bit different because sometimes in a science paper you’re not yet ready to answer the question when you write the paper. For instance, in the grant proposal example above, the writer does not yet know what ghrelin’s effects on in utero learning are; they are writing the grant so they can get the funding necessary to figure it out! This does not mean that the writer does not need a thesis. Instead, they should end their introduction with a claim about the purpose of their research and the primary method they will use to answer their question. Below is one potential claim:
Using wildtype and ghrelin-knockout mice, I will explore the effects of exposure to methyl salicylate (mint) during pregnancy on mint odor sensitivity in offspring.
In contrast, in a debate-style science essay, your thesis might look more similar to the thesis in a humanities or social science paper. It will state which theory in the field, if either, is more compelling or perhaps argue that two seemingly contradictory scientific theories can coexist. Regardless of which type of claim you make, however, all science writing should also be sure to address the implications, or stakes, of the research topic, just as you learned in Expos. In the ghrelin example above, the writer might end their introduction by stating that determining ghrelin’s role in in utero learning is important for understanding potential prenatal risk factors for obesity.
We’ve focused a lot on the introduction, but actually, much of the remaining organization of a science paper will closely parallel what you learned in Expos, too. For example, each body paragraph should have three main components to it: a topic sentence that states the main idea of the paragraph, evidence to support the topic sentence’s claim, and analysis of the evidence. For analysis, you might consider the strengths and weaknesses of the techniques used, additional interpretations of data, potential experimental confounds and how well they were controlled, and/or how the results relate to other similar research in the field. Between each body paragraph, it is also important to incorporate transitions. In science writing, you might use phrases such as, “To determine the cause of [result from previous paragraph]…” as a way of linking two paragraphs.
Ultimately, an important part of being a scientist is not just understanding key theories in your field, but also being able to communicate these theories—and the ongoing research surrounding them—to an audience. The audience for a science paper may be different from the audience for your Expos papers, but you can draw on what you learned in Expos about sharing your ideas with an audience and explaining why those ideas matter.
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