The student clearly describes how the data was obtained and processed, making each procedural step easy to understand. However, the description of data recording and processing lacks detail, particularly in ensuring that temperature measurements match the stated uncertainty. Nonetheless, the student effectively considers the impact of uncertainties on the data and results, presenting calculations accurately. The investigation is well-structured, with no elements that would hinder the validity of the conclusions drawn. Additionally, the student conducts relevant data processing that accurately addresses the research question, showcasing a comprehensive approach to data analysis.