This study aims to investigate the effects of authentic learning methods -- applied in science courses -- on the problem-solving skills and attitudes towards those courses. As a research design, a quasi-experimental design with pre-test and post-test control groups was used in the study. The data of the study were collected from 92 students at the level of 6th grade in Van, Turkey in the 2017-2018 academic year. As data collection tools, the Problem-Solving Skills Test and Science Attitude Scale were used throughout the study. During the data analysis phase, descriptive statistics, one-factor analysis of variance for unrelated samples, t-test for related samples, Kruskal Wallis-H and Wilcoxon Signed Rank Test were used. As a result of the study, it was realised that there was a significant difference between the experimental group and control groups' problemsolving skills total scores in favour of the experimental group. Furthermore, it was ascertained that authentic learning practices improved the problem-solving skills of the experimental group students to a significant extent. In terms of attitude points towards science, it was determined that the post-test scores of the experimental group were significantly higher than the control groups and authentic learning practices had a positive effect on attitude.