A wide array of conceptual change strategies attempted to address students' persistent alternative conceptions, yet there remained ubiquitous struggles of teachers teaching abstract and highly contentious science concepts. This study investigated the effectiveness of the novel Conceptual Change Framework of Instruction (CCFI) in teaching eclipses among Grade 7 learners (n:40) in a private school in Cebu, Philippines. Using an embedded mixed-method design, a pretest-posttest method with the integration of a two-phased semi-structured interview with students measured the extent of the effect of an intervention on students' understanding, conception, and learning experiences. Quantitative results suggested that students' level of understanding significantly improved after exposure to the instructional model, as evident in their mean gain scores. Students in the experimental group scored above the passing grade compared to those in the control group. Moreover, thematic analysis revealed that students' demonstrated a conceptual change in their conceptions of eclipses from naïve understanding to scientifically accurate concepts. They also signified the efficacy of the CCFI in facilitating positive learning experiences through various engaging teaching strategies. Thus, science teachers may consider the use of CCFI among the array of instructional models in teaching science concepts to enhance conceptual understanding and positive learning experience.