The student clearly states the independent and dependent variables in the research question, providing values and appropriate units for the independent variable. Additionally, the student describes the method of analysis conducted and includes a background theory section that directly relates to the research question. The document also includes a clear explanation of the choice of techniques used for measuring the independent and dependent variables. However, the student could further clarify the rationale behind the choice of values for the independent variable. Furthermore, the student successfully identifies and addresses safety, ethical, and environmental issues associated with the investigation. The methodology is sufficiently described, allowing for the investigation to be reproduced, and there is no irrelevant or repetitive information included in the description.
