The current research sought to evaluate science integrated curriculum in light of for the next generation science standards, based on mixed method design where quantitative and qualitative data were collected using a content analysis technique that includes a set of indicators for NGSS standards in its three dimensions (practices, concepts, and core ideas). The analysis community included science integrated curriculum "discover" in first and second primary grades, the analysis sample included chapter two, theme one, entitled “Our Environment", “What do we see in the night sky?" respectively. Results showed that NGSS standards percentage included in first grade is 14.31%, 30.71% for second grade. Research recommended redesigning “curriculum units" In light of NGSS standers, curriculum general objectives, teaching methods, activities, educational technology, assessment methods, and the foundations for building a learning community. Thus necessity of evaluating science curricula in the light of NGSS standards that based three dimensions and these are (Scientific and engineering practices, core ideas, and general concepts) which reflects the quality of learning outcomes.