The aim of this study is to examine the effects of activities in TUBITAK Merakli Minik Magazine on social skill levels of preschool children (48-60 months).The research was carried out with a total of 40 children; 20 children in experiment, 20 children in control group who were studying in 2 different classes of Bengi Main School in Balikesir province district. A semi-experimental design with pre-test-post test control groups was used in the research. The social skill assessment scale developed by Avcioglu (2007) used to determine the social skill levels of preschool children. SPSS 20.0 package program was used for data analysis. Mann Whitney U and Wilcoxon test were made to see the difference between the groups. These tests used because the data were not normally distribute. According to the findings; it was observed that the final test scores from the social skill scales of children in experiment group increased significantly compared to the final test scores of children in the control group.