The student has provided a focused and detailed description of the main topic, clearly outlining the investigation's purpose and the effect of temperature on the buffer capacity of pH-balancing facial cleansers. The chemistry behind the experiment is well explained, aiding the reader's understanding. The methodology chosen is highly appropriate, focused on answering the research question, and includes steps to assure the relevancy and validity of the obtained results. Additionally, the student demonstrates awareness of safety hazards and takes appropriate precautions. However, there are areas for improvement such as the need for a more focused and clear research question keeping the independent variable values constant. The student should also clearly identify and explain the environmental concerns as well as state that there are no ethical concerns since no living organisms were used.
