We made a high quality digital movie contents for laboratory works in science education in junior high school. It is designed to be used through the whole subject of "Electric current and its uses". After the practical use in classes, we have studied if the use of such a multimedia teaching material has the ability to change the students' image of the science classes affirmatively. As a result, we have a conclusion that the effect of the multimedia contents depends on the students' attitudes to the science classes. It is effective to the students with motivations, but has bad effects to those who are lacking in the motivations.