The abstracts of each lab report contained the main reason of the conducted experiment or why the experiment would be impactful, the purposes of the experiment, a brief description of the methods used to obtain the results, and the potential impact of the findings on society as a whole. The introduction includes a more detailed description of polystyrene's chemical properties and industrial Limitation of the Experiment (Classroom Setting) This spin casting experiment was conducted by high school students in university facilities under the careful supervision of graduate students and professors. Due to the large volume of experimentation, careful oversight of every step in the process was not possible. As a result, there were many feasible sources of error. For example, the silicon wafers that were cut by students may not have been uniform in size, resulting in irregular samples when spin casting. Furthermore, the silicon wafers were not cleaned with compressed air before spin casting for some experimental groups, which may have caused dirt or other particles to coat the surface of the sample, affecting the ellipsometer readings. Another plausible source of error could be improper use of the ellipsometer. It may have not been calibrated or focused properly, affecting the accuracy of its readings. A combination of these factors led to inaccurate initial molecular weight determinations.