ABSTRACT While current science teaching aims to cultivate students’ argumentation abilities on socioscientific issues, engaging them in social actions on these issues contributes to the realisation of the goal of science education. Consequently, instructing students toward action in the social milieu and helping them comprehend actions that ought to be taken afterward allows for an understanding of how science teaching benefits the world. This qualitative study implements issue-based and action-oriented instruction in a junior high school science curriculum with 66 ninth-graders participating. The quality of their argumentation was recorded during the solar cell utilisation argumentation activity, and three years later, 31 of them reported taking subsequent actions. The results show an enhanced effect on students’ argumentation quality. Most actions students reported are attributed to personal and participatory categories with a few critical actions focusing on fundamental changes. Also of note, a high proportion of students with high-level argumentation quality understood but failed to take any action to solve confronting problems. Therefore, in addition to stressing argumentation ability as a crucial part of cultivating scientific literacy, it is rather important to awaken students consciousness of the existence of social problems and to conduct small-scale actions with collective visions and strategies.