The dramatic decline in youth interest in science, technology, engineering and mathematics (STEM) during adolescence, both in the USA and internationally, has been a phenomenon of societal concern for several decades. The Synergies project was launched to help deal with this issue. In this paper, we report findings from the first two years of our longitudinal survey research. We sought to understand the nature of the STEM-related interests of 10-/11-year-old youth living in a single urban community and the factors that seem to influence whether these various dimensions of interest increase