In this theoretical paper we explore the use of narrative as a learning tool in informal science settings. Specifically, the purpose of this paper is to explore how narrative can be applied to exhibits in the context of science centers to scaffold visitors science learning. In exploring this idea, we analyze the theoretical, structural and epistemological properties of narrative. In the pages that follow, we first discuss the advantages and possibilities for learning that science centers offer alongside challenges and limitations. Next, we discuss the role of narrative in science, as a tool for supporting science learning. We then continue with an analysis of the structural and epistemological properties of narrative and discuss how those can serve to establish narrative as a learning tool.

Modern society has led many people to become consumers of data unlike previous generations. How this shift in the way information is communicated and received — including in areas of science — and affects perception and comprehension is still an open question. This study examined one aspect of this digital age: perceptions of astronomical images and their labels, on mobile platforms. Participants were n = 2183 respondents to an online survey, and two focus groups (n = 12 astrophysicists; n = 11 lay public). Online participants were randomly assigned to 1 of 12 images, and compared two label formats. Focus groups compared mobile devices and label formats. Results indicated that the size and quality of the images on the mobile devices affected label comprehension and engagement. The question label format was significantly preferred to the fun fact. Results are discussed in terms of effective science communication using technology.

The great increase in visitor studies on science museums and centres (SMC) has been marked also by a shift in approach to these studies, paying more attention to the social context of the visits and the nature of the experience. Evaluations have influenced directly SMC exhibition practices but more attention needs to be paid in research about the personal experiences of visits, how these are interpreted and how they contribute to scientific literacy.

As science museums and centres (SMC) broaden their practices to include the development of scientific citizenship, evaluation needs also to take account of this dimension of their practices. It requires complex methods to understand better the impacts of public participation in activities mediated by SMC, including their impacts on the governance of the SMC themselves.

Even in the best-resourced science communication institutions, poor quality evaluation methods are routinely employed. This leads to questionable data, specious conclusions and stunted growth in the quality and effectiveness of science communication practice. Good impact evaluation requires upstream planning, clear objectives from practitioners, relevant research skills and a commitment to improving practice based on evaluation evidence.

Metaphors and visualizations are important for science communication, though they may have limitations. This paper describes the development and evaluation of a novel interactive visualization, the "Dynamic Evolutionary Map"' (DEM), which communicates biological evolution using a non-standard metaphor. The DEM uses a map metaphor and interactivity to address conceptual limitations of traditional tree-based evolutionary representations. In a pilot evaluation biology novices used the DEM to answer questions about evolution. The results suggest that this visualization communicates some conceptual affordances differently than trees. Therefore, the described approach of building alternative visual metaphors for challenging concepts appears useful for science communication.

In contrast to past consensus, many authors now feel that the passive voice compromises the quality of scientific writing. However, studies involving scientific articles are rare. Using a corpus of 60 scientific research articles from six journals, this study examined the proportion of passives used, and the contexts and forms in which they occurred. The results revealed that about 30% of all clauses were passive clauses. The canonical form was most pervasive, followed by the bare passive; together, they constituted more than a quarter of all clauses analyzed. Passives were typically used in main clauses, followed by relative and adverbial clauses. Roughly 29% of all passives were located in the methodology section. Based on the results, the proportion of passives in scientific writing may stabilize at about 30%. It is unlikely to dramatically drop any further since the trend suggests that passives are still widely used in the methodology section.

The demand for evaluation of science communication practices and the number and variety of such evaluations are all growing. But it is not clear what evaluation tells us - or even what it can tell us about the overall impacts of the now-global spread of science communication initiatives. On the other hand, well-designed evaluation of particular activities can support innovative and improved practices.

Evaluations of science communication activities before, during and after their implementation can provide findings that are useful in planning further activities. As some selected examples show, designing such evaluation is complex: they may involve assessment at various points, a mix of quantitative and qualitative methods, and show that impacts differ when seen from different perspectives.

An evaluation toolkit developed as part of the EU-funded PLACES project was applied in 26 case studies across Europe. Results show, among other things, the contribution of science communication initiatives to public curiosity, professional networking and perception of cities where these initiatives are stronger.