This study enhanced the 7E instructional model towards enriching the science inquiry skills of senior high school learners in General Chemistry 1. A total of 136 Grade 12 learners enrolled in the Science, Technology, Engineering, and Mathematics (STEM) strand participated in the study. The study was composed of three phases. In Phase I, the generated themes nature of topics, learning environment, learner-related and teacher-related issues were found to be the causes of difficulty in science inquiry skill enrichment. The learners? meaningful learning experiences during the process were encapsulated in Phase II. Finally, Phase III used the generated themes in the enhancement of 7E instructional model promoting inquiry-based and constructive learning among senior high school learners.