This qualitative descriptive analysis aims to interpret the complexity of the science items that are integrated with environmental sustainability content. This research was conducted on science test items in the 2013 Curriculum student science textbooks released by the Ministry of Education and Culture of the Republic of Indonesia. This study focuses on finding out the complexity of the scenario-based science test contained in science textbooks based on the complexity category indicators of the 2018 PISA global competency test. The data was obtained using an instrument adopted from the test complexity indicator and environmental sustainability content indicators contained in the 2018 PISA Framework. The data analysis technique uses the percentage formula to determine the proportion. The results of this study indicate that the proportion of science test items is different from the standard proportion of the 2018 PISA global competency test. The subdomains measured in the 2018 PISA global competence are; the resource risk subdomain and subdomains of policies, practices, and behaviors for environmental sustainability. However, science test items cover only the resource risk subdomain. Therefore, the researcher recommends further research to develop science test items that consider the complexity of the test according to the goals of students' global competence. [For the complete proceedings, see ED631021.]