In the editorial of this issue of JCOM, we underline how children are on one hand one of the main target group for science communication, and on the other hand a largely excluded group in the shift from a linear diffusion model to a dialogic model of science communication. In this series of comments, stimulated by the EU - FP7-Science in society project `SiS-Catalyst - 2013 children as change agents for science in society' (a four year programme aimed at crossing the science in society and the social inclusion agendas), we would like to explore methods and approaches that can ensure that, in science communication contexts, children can be listened to, that they are given the chance to express their view, and that they can be empowered in building their own relationship with science, and thus a sense of ownership for scientific knowledge.