The intent of this study was to investigate possible relationships among the constructs of attitudes toward science, interest in science, science curiosity, and self-concept of science ability. Data were collected from 228 sixth-grade students by way of four Likert-type instruments, each of which measured a given attribute. Statistical procedures included univariate and multivariate analysis of variance, product-moment correlations, canonical correlations, multiple regression analysis, and factor analysis. The results indicated that attitudes toward science, interest in science, and science curiosity are highly related. Implications for classroom science teaching and suggestions for future research have also been discussed.