This research aimed at producing learning material of physics for senior high schools using guided inquiry with cognitive conflict strategy which is valid, practical, and effective to train students’ creative thinking skills on the static fluid learning material. The development of the learning material used 4D development model and were tried out on class XI students in the second semester in the 2016/2017 academic year. The design of this research was one group pre-test post-test design. The data collection methods were validation sheets, questionnaires, tests and observations, while data analysis techniques used quantitative descriptive analysis. This research obtained several findings, namely: the learning material developed had an average validity score with very valid catagory. The lesson plan could be implemented very well. The students’ responses toward the learning process were very possitive with the students’ interest to follow the learning. Creative thinking skills of student before implementation product is in the less creative category, then it is very creative after implemented the product. Based on the results of this research, it can be concluded that the guided inquiry learning material with cognitive conflict strategy is decent (valid, practical, and effective) to be used to train students’ creative thinking skills.