This paper examines how a particular subset of informal science education settings — science exhibitions — embraces contemporary socioscientific issues (SSI) and fosters public engagement with them. A qualitative cross-case analysis of two SSI exhibitions about teen pregnancy (Brazil) and sustainability (Canada) was conducted. It revealed complex issues around operational funding, and institutional tensions related to the nature, balance, and relevance of the topics displayed. The analysis unravelled opportunities for SSI exhibits to engage with contextualized and situated knowledge; articulate the deficit model with other models of science communication; and consider visitors as agents of change.