ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 50, Number 6
JKCSEZ 50(6)
December 20, 2006 

The purpose of this work was to study the applied effects of out-of-class Chemical Experience Learning (CEL) Programs on scientific process skills and science-related attitude for middle school students. The out-ofclass CEL Programs which were developed to make ‘the funny out-of-class chemistry’ and ‘the exciting science class', included the nature-friendly chemical experiments suitable for natural environment and composed of real lifecentered experiences. The out-of-class CEL programs were applied to natural environment through all-day improvement activity. The science club students in D middle school in Busan were selected as the objects of the study consisting of one experiment group and one control group. The out-of-class CEL programs were applied to the experiment group and traditional class method was applied to the control group. The change of scientific process skills and science-related attitudes between two groups were compared and analyzed. And students reaction on the out-ofclass CEL programs was investigated. As a result, out-of-class nature-friendly chemical experiments were improved scientific process skills and science-related attitudes of middle school students. Also, more than 70% of students in the experimental group gave positive feedbacks to the out-of-class CEL programs and increased attention, interest, and degree of self-participation in science.