The Swedish National Agency for Education and the Swedish School Inspectorate raised a red flag that pupils' interest in science lowered between year 4 and year 8. The purpose of this literature study was to investigate possible ways to conduct science education in a way to promote and to maintain pupils’ interest in science. This purpose led to the two research questions: - What work methods can be used to promote and maintain pupils’ interest in science? - What aspects are important in the process of selecting subject content, to promote and maintain pupils’ interest in science? Ten different studies that focused on pupils' interest in science, or lack of, in science were analysed to find solutions to the problem at hand. The results showed five topics, all of which had a positive impact on pupils' interest in science. Methods such as communicative work, inquiry-based science education and laborative work, together with aspects of subject content such as science in an everyday context, pupils' influence and pupil involvementwere all key factors to gaining pupils' interest. This study points out how work methods and teachers’ didactic choices can be used to increase pupils' interest. We further on discuss how the new Swedish curriculum may be incompatible with such work. As well as how, or if, our pupils’ interest and knowledge will be able to coexist through primary school science education.