The purpose of the study is to analyze gifted and talented students' project performances and views about them. In the study, explanatory sequential design, which is one of the mixed method research designs, was applied. In the quantitative phase of the study, project performances of the students were identified, while, in the qualitative phase, their views on their performances were determined. The study group consisted of the students who were enrolled in the Support Program at a Science and Arts Center during the 2017-2018 education year. According to quantitative findings, during the project preparation process, the students exhibit "fairly good" performance in producing ideas from science-related life, producing ideas for their needs and creating hypothesis about the problem. In qualitative findings, the students are seen to have no difficulty in producing ideas, as a result of which they can immediately produce ideas on their own. As regards to the project process and project content, they are observed to show "fairly good" performance in self-deciding on the sources and materials to be used for testing the hypothesis and sharing the research findings with the teacher and class while showing "satisfactory" performance in testing the hypothesis. The students stated that they did research, tested hypothesis and made inferences for hypothesis testing. They performed "fairly good" in using fluent and clear language in presentation, making the presentation within the given time and making eye contact with the audience. They expressed their opinion that they made an effective presentation as well as they were not satisfied with the presentation.