The student provides a focused and detailed description of the main topic, which is to determine the milk type with the highest calcium content. Relevant background information about the importance of calcium and the methodology of complexometric titration is present. The student correctly identifies the independent and dependent variables and lists the variables to be controlled for valid results. The student also shows full awareness of safety hazards and environmental issues, but no ethical concerns are mentioned. However, the research question could have been better phrased to warrant the presence of a statistical test.
