The student has successfully identified a focused and detailed topic of investigation, which is calculating the coefficient of viscosity of dish soap. The introduction section provides a clear breakdown of the topic and what will be done in the investigation. The physics concepts related to the topic, such as viscosity and Stoke's law, are explained well and supported by proper figures. The methodology of the investigation is clear, easy to follow, and focused on addressing the research question. However, to improve, the student should include reasons why variables need to be controlled to assure the relevance and reliability of the collected data. Additionally, the student should explicitly state that the waste of materials is an environmental issue.
