Today, early science education is a well-accepted view. Enhancing children's curiosity about the natural world and fostering positive attitudes toward science are primary goals of science education. However, questions remain regarding the appropriate ways to identify, nurture, and study these emotional states in pre-schoolers. This study examines the potential of using pre-schooler's verbal (e.g. self-generated figurative expressions) and behavioral (sensorimotor interactions) responses while participating in a scientific activity, as indicators of curiosity and attitudes toward science. The responses of 41 pre-schoolers were documented via a response questionnaire developed for this study. An integrated quantitative-qualitative approach was utilized for data analyses. Results show that pre-schoolers utilize figurative expressions to express various emotional valences. Generation of verbal expressions that entail positive emotional valences and the desire to engage in sensorimotor interactions during a scientific activity were identified as positively correlated. Additionally, girls were more likely to express curiosity and positive attitudes toward science than boys in the context of this study. The findings suggest that these verbal and behavioral measures may serve as indicators of attitudes and curiosity toward science among pre-school children. (author abstract)