In this study, computer assisted education (CAE) material was developed according to the Meaningful Learning Theory and its effectiveness on the students' success and their attitudes towards computer and chemistry was researched. The research was applied to 10th class science students at Buca High School in İzmir. 56 students attending this research were randomly divided into two groups; experimental group (EG) and control group (CG). While the material was applied to EG by CAE, traditional method (TM) was applied to CG. In order to evaluate the effectiveness of the material, Scientific Success Test (SST), Chemistry Attitude Scale (ChAS) and Computer Attitude Scale (CAS) of which validity and reliability calculated before were applied to both EG and CG as pre-test and post-test. The data obtained from tests were analyzed by using SPSS program. The results of analysis indicated that Computer Assisted Education method has more effect on students7; chemistry success, attitudes towards chemistry and computer than Traditional Method