In this research, the process of solving the context-based pressure questions of 8th grade students was examined. It is aimed that the students express what they think while they are solving the context-based pressure questions, how they comment, which information and experience they use when they try to find the solution. Case study method, one of the qualitative research designs, was used. The sample of this study consisted of 12 students, six girls and six boys studying at 8th grade of a state secondary school in a town in the Central Black Sea Region in 2019-2020 academic year. In the selection of working group, the equality of the numbers of boys and girls and their success level are the criteria of sampling. The data was collected by using multiple choice questions. The questions were 12 context-based pressure questions of 8th grade students. It is asked from the students that they think aloud while they were answering the questions. In the research, the interviews with the students were recorded. Then they were transferred into writings and the data was analyzed with content analysis method. At the results of the study, it was determined that data shows variations according to academic success of the students. While solving the questions and explaining the ways of solution, students with high academic success, easily related to science topics and gave correct answers by making scientifically accepted statements. Most of the students, who have medium success levels, used less scientific knowledge when explaining the solutions than students with high academic success. Some of them explained the questions based on their experiences and had misconceptions about the subject. The majority of students with low academic averages had not sufficient conceptual knowledge caused lack of understanding, misconceptions and misinterpretation while solving contextbased pressure questions.