On the basis of investigation of important texts such as national policies, laws and regulations, practical materials of popular science and academic research literature, this paper reviews the development of science popularization in urban communities in China since 1949. It tries to reveal the development and changes of the concept, organization, content, methods and means of science popularization in urban communities, and summarizes the features of these changes in the past 70 years. It could provide references for the development of science popularization in urban communities in the new era.

The purpose of this study is to explore the characteristics of parental roles and the parent-child talk in children's discovery museums. A sample of 41 family groups, which had a child aged 3-6, was randomly selected in the role-play zone at the Laoniu Children's Discovery Museum. The type of parental roles, the content and modes of parent-child talk in parent-child interaction were investigated. The results of the study indicates that parents play the co-player role for the longest time. As the interaction time goes on, parents gradually focus on playing the role of the onlooker, rid of a variety of roles they play in the initial stage of the interaction. In terms of the content of the parent-child talk, topics about exhibits take the largest proportion in all, with a large percentage of perceptual talk and conceptual talk in them. Besides, father's participation has a significant influence on the main topic of the talk. Families with a father are more likely to discuss game plots, while the families led only by the mother are more inclined to discuss the exhibits. During the interaction, the topics of parent-child talk gradually change from being about the game plots and exhibits to focusing only on exhibits. About the parental-child talk modes, the “interactive-dialogic” talk is given priority in all modes, which is almost throughout the whole game process in the role-play zone. The “interactive-authoritative” mode mainly appears in the initial and the end period of the interaction, while the “non-interactive-authoritative” dialogue mainly shows in the initial stage of interaction. The results imply that parents can timely adjust strategies to improve the parent-child interaction. It also provides the idea that educators in this institute can make full use of the exhibits or other materials to design game narratives in order to making sufficient parent-child interaction.

Upon the historical new era, this paper reviews the developmental history of China's 30-year Civic Scientific Literacy, which can be summarized as the change from concept to index, from theory to practice, and from academics to policies. This paper also summarizes the practice of supervision and evaluation of China's 30-year Civic Scientific Literacy Survey, which experienced the changes from merely introducing the contents' translation version of other countries to truly understanding the contents, from studying related subjects to making policy as support, from following other countries to leading other countries through innovation. This paper strives to further clarify the historical mission and developmental direction of our Civic Scientific Literacy assessment so as to make its indicators to play an important role in building a strong country of science and technology. The China Civic Scientific Literacy indicators is expected to promote the scientific literacy of citizens and build a community of shared future for the whole world.

2019 marks the 70th anniversary of the founding of the People's Republic of China. Over the past 70 years. With the strong support of the CPC and the central government, China has issued a series of policies on science popularization, which has initially formed a policy system covering the state, departments and local levels, effectively promoting the vigorous development of science popularization. This paper systematically sorts out the historical background, main types, main contents and implementation effects of China's science popularization policies over the past 70 years, and objectively describes the historical process of the change of China's science popularization policy system. This paper puts forward the prospect of China's science popularization policy system construction in the future from the aspects of further improving the science popularization policy system, enhancing the policy effect, strengthening the mechanism construction, innovating the legal system construction, and so on. Furthermore, it provides policy basis and decision-making reference for the further leap-forward development of science popularization in the new era.

Informal science education institutes such as science and technology museums and science related museums play important roles in improving people's scientific literacy. Understanding the nature of science (NOS) is the important part of scientific literacy and is also one of the main goals of science education. For educators in science education institutes, to deeply understanding of the nature of science has significant meanings on achieving the goals of science education. This article explored the status of 181 educators' views about nature of science based on survey at science education institutes. The results showed that the understanding of NOS of educators in science education institutes is on medium level, and it needs to be improved generally; most of science education institutes' educators' understanding of NOS is superficial and traditional. This article also gave some suggestions on improving the science education institutes educators' understanding of NOS.

By means of document reviewing, this thesis focused on investigating the science news in Xiang Newspaper and intended to establish an organized methodology to systematically enhance the interestingness in science news based on the news structural factors like title, news-lead, main part and conclusion. This paper extracted and summarized some methods such as cliffhanger setting and rhetoric improvement in order to help the science journalism practices improve.

Science communication and popularization is an important way for the public to recognize science, understand science and enhance scientific literacy. By choosing the SCI and SSCI databases as data source and using CiteSpace to analyze 1 370 journal articles of science communication and popularization from 1999 to 2018, this paper drew the knowledge maps of the distribution of papers, research subjects, high-cited journals, high-cited authors and high-cited references to show the development context and hot topics. Finally, the author summarized the characteristics and trends from the following aspects: research foundation, research methods and research content, so as to promote the innovation and development of domestic science communication and popularization research in China.

He Jiankui, who worked in the Southern University of Science and Technology, announced that a pair of genetically edited baby was born in China. This quickly caused widespread debate in society. In order to study the science popularization demand when ethical emergencies happen, this study used data statistics platform of search engine to study and analyze the big data of the keywords that have been selected, and to understand the structure and characteristics of the ethics science popularization needs, which the Internet users have, and the evolution trends of science popularization demand caused by emergencies. The results show that the time distribution of Internet users' science demand for ethical incidents is “inverted V-shaped” and the persistence is poor; the spatial distribution of people who used search engine to search the keywords was positively correlated with the regional economic level, and the young and middle-aged people and men were highly concerned about related content; people mainly focused on the thematic figure of the incident, while the attention to relevant professional science content is low.

As the main carrier of the information of the Science and Technology Museum, the exhibits at the Science and Technology Museum focus on science and knowledge, fun and entertainment. Yet it is common that one exhibit show only one scientific knowledge. It is sensible to consider the content of the exhibition item and the means of expression could embody with each other. In addition, the Mohr animation is a special form of visual phenomenon. Its fun, peculiarity and contradiction are widely used in the field of art design, but it has limitations and rarely employed by the design of exhibits in science and technology museums. If the optical illusion could be applied scientifically and reasonably in the design of exhibits, it would help raise the audience's interests, curiosity, and improve the audience's ability to obtain information. Therefore, this study took the constructivism learning method, Gestalt psychology, perspective and afterglow effect as the theoretical framework, combined the optical illusion with the human evolution process, and designed the exhibit model named “The Walking Memory”, to explore the possibility of combining well-known science and technology with abstract natural science knowledge.

The Monthly Journal for the Mothers and Infants' Health is the first professional journal, which disseminated the knowledge of women and infants' health in China. Under the operation of the chief editor Yang Yuan-ji, the journal started in 1941 in Shanghai but stopped after two issues due to the Pacific War. It was re-published in 1945 and ceased again in 1950. Then it continued in the form of Women and Children's Health. Through the analysis of this female scientific and technical journal, this paper analyses the dissemination of women and infants' health knowledge in its publication period from the perspective of authors and readers. The research suggests that the journal has a crucial meaning and value in popularizing gynecology, obstetrics, pediatric knowledge as well as building the common sense of women and infants' health for ordinary women.