Along with the fast development in the internet technologies, every day new learning and teaching approaches are introduced and implemented. In this context, the aim of this research is to reveal the effect of Flipped Classroom model on the academic success of the students for the subject of Interaction of Matter with Heat of 8th grade Science course and opinions of students on the Flipped Classroom Model. Study group of the research consists of a total of 63 8th grade students, studied in a state middle school located in the central part of city of Konya during the 2017-2018 school year. In the research, mixed method, a method that allows integration of research results via utilization of quantitative and qualitative data collection methods conjointly is used. As the quantitative data collection tool, "Success Test" developed by a group of four, consisting of four professionalist science teachers and researchers, and as the qualitative data collection tool, "Semi-Structured Review" form, developed by the researcher have been used. In the research, a quasi-experimental design with a posttest control group has been used. As the result of the research; It was concluded that the academic achievement of the experimental group was statistically significant and positively higher than the control group. Students consisting the experimental group has expressed that with the flipped classroom application, their success and their participation to the class has improved and they found this method to be more fun than listening to the lecturing as per the current program requires. Also, the students have stated their absence of internet access at home and the problems they encounter due to hardware inadequacies of their computers are the drawbacks of the implementation.