The student identifies a focused topic of investigation by stating the research question: "How does temperature affect the speed of sound in water?" in the Introduction section, providing background information that demonstrates a clear purpose. However, the research question lacks specificity regarding the independent and dependent variables, as well as controlled variables, which detracts from its clarity. The methodology is well-structured and easy to follow, ensuring that the investigation is relevant to the research question and includes measures for data reliability. Nevertheless, the student does not demonstrate full awareness of safety, ethical, or environmental issues related to the procedure, which is essential for a comprehensive investigation.
