Analyzed were attitudes toward science and critical thinking skills of chemistry and non-chemistry students. One hundred and fifty-three chemistry students and 149 non-chemistry students were randomly selected for the study. Criterion tests used were the "Cornell Critical Thinking Test, Form X" and the "Reaction Inventory, Attitudes Toward Science and Scientific Careers." Some of the conclusions of the study were (1) there was no significant difference in the growth in critical thinking abilities between any of the groups of students, (2) the high subgroup of chemistry students scored significantly higher (.05 level) than did the non-chemistry students in attitudes toward science, and (3) chemistry students showed positive growth gains in attitudes toward science on the "Reaction Inventory"; non-chemistry students did not. (BC)