One of the aims of science curriculum is to understand technology that is used in all areas of daily life. Thus, science curriculum should be revised in a feasible and dynamic manner for the quality. The purpose of the study is to investigate primary school teachers' opinions about renewed 3rd grade science curriculum. The sample of the study consisted of 160 4th grade primary school teachers working in public primary schools during 2014 and 2015 academic years. This is a descriptive research design. The data obtained from the surveys were analyzed by using frequencies, percentage, mean and standard deviation. T-test and One-way Anova were used for parametric variables. Findings of the study showed that teachers maintained that the content of the revised 3rd grade science curriculum was adequate and taking science course to the 3rd grade course was the correct decision.