The formal implementation of the Irish Primary Science Curriculum (Department of Education and Science [DES], 1999a) commenced in September 2003. The National Council for Curriculum and Assessment (NCCA) has commissioned research to examine the effect and extent of this curriculum’s implementation. This work forms part of the NCCA’s rolling review of the Primary School Curriculum. This report represents the culmination of the second phase of commissioned research, which focuses on students in their first year at post-primary school. These students represent one of the first cohorts to have had the opportunity to study science within both the Primary Science Curriculum and the current Junior Cycle Science Syllabus (DES, 2003a; 2006). This phase of the research considers the impact of past and present experiences of school science on these students. In addition, it considers curricular continuity in primary and post-primary school science as viewed by pupils in the latter stages of primary school and students in their first year at post-primary level. Findings in this report are based on data gathered from a nationwide survey, in which 234 first year postprimary students completed questionnaires, and data gathered from a case study of 8 post-primary schools, in which students were interviewed and asked to complete questionnaires. These data were gathered between February and May 2008. Relevant data gathered from pupils in third to sixth class at primary level during Phase 1 of the commissioned research (Varley, Murphy and Veale, 2008) are also considered in this report. Findings and recommendations are summarised here.