Funded by the Gordon and Betty Moore Foundation, the Science Learning Activation Lab project involves the development of measures of new aggregate construct called activation in science. The project focuses on activation in late elementary / early middle school-aged children. We are seeking to create and validate a battery of measures that predict sustained, long-term engagement with science opportunities across in and out-of-school settings. These measures will include the following component constructs (all related to science as a domain): interest, curiosity, motivation, persistence, appreciation of value, capability of engaging in reasoning, responsibility for learning, and identity. This work is done in collaboration with the Lawrence Hall of Science at the University of California, Berkeley.