This paper explores the types and features of science offerings within afterschool programs and these programs’ connections to sources of science support, such as science museums and technical assistance providers. SRI surveyed a state-wide random sample of programs funded by the state’s Afterschool Education and Safety (ASES) program about their science programming, and their connections to organizations that provide science resources or support. An important innovation of this study is the consideration of social networks of afterschool programs, exploring their links to the number, type, or strength of ties a program has to outside organizations. #2011Conference #Prek-12EducationalEvaluation