The student demonstrates a strong understanding of relevant chemical principles and effectively applies them in their research on caffeine extraction. The essay includes a clear explanation of the techniques and apparatus used, supported by credible sources that directly relate to the research question. The student maintains an academic tone and consistently employs chemical nomenclature, using appropriate balanced equations and SI units throughout the essay. However, the student did not adequately define technical terms when first introduced, which detracts from the clarity of their understanding. Overall, the student's work is well-structured and informative, with only minor improvements needed in the explanation of technical terminology.
