The student provides a detailed and focused description of the aim of the experiment, which is to investigate the change in pH in the reaction between spirulina and hydrochloric and lactic acid. The background information section is well-organized and thorough, providing sufficient details about the reactants and their properties. The methodology is highly appropriate to the topic, focused on answering the research question, 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, the student should have explicitly stated that there were no associated ethical concerns since no living organisms were involved in the study.
