The Environmental Motives Scale (EMS) was developed to measure an individual's concerns about environmental issues. The measure provides subscale scores for egoistic, social-altruistic, and biospheric concerns. Prior studies have shown a good fit for the 3-factor structure, but the measure has yet to be used with children. In this paper we report two studies in which we develop and validate a modified version of the EMS for use with children. Confirmatory factor analyses show an acceptable fit for this population. The reliability and validity of the measure for use with children is also examined. (Contains 3 tables and 2 figures.)