The student provides a focused and detailed description of the main topic, which is to determine whether the expiration affects the calcium content in fresh milk. The chemistry of the method applied in this experiment (complexometric titration with EDTA) is explained thoroughly, making it easy for the reader to understand. The methodology of the investigation is highly appropriate to the topic and includes appropriate steps to assure the relevancy and validity of the obtained results. The student also shows full awareness of safety hazards and environmental issues that can arise during the experiment. However, there are some shortcomings in the research question and the background information provided, which lack detail and relevant information, respectively. The student does not address any ethical concerns that may arise during the experiment.
