A curriculum is a master plan that regulates teaching and learning. This paper compares Finnish and Thai primary school level science curricula to the PISA 2006 Scientific Literacy Framework. Curriculum comparison was made following the procedure of deductive content analysis. In the analysis, there were four main categories adopted from PISA framework: (1) knowledge of science (content knowledge), (2) knowledge about science, (3) competences, and (4) contexts. The analysis revealed that the Thai curriculum was more similar to the PISA framework than was the Finnish curriculum. The Thai curriculum emphasizes the scientific process and the Finnish curriculum the concepts and contexts in which these concepts meet, rather than the process.