Abstract
Science literacy is one of the skills learners possess in the 21st century. The main objective of science literacy is to make learners aware that science is a mandatory curriculum component up to the secondary level. The focus should be on developing awareness among learners about the relationship between science, technology, and society, sensitizing learners, especially to environmental and health issues, and enabling them to acquire knowledge and skills. Therefore, a physics E-worksheet is needed that can help students improve their science literacy skills. The research method used is R&D with the Plomp development model. In the preliminary analysis, science literacy analysis, STEM approach, and analysis of the use of electronic teaching materials were analyzed. Furthermore, it continued with the validity test with the result that the STEM-based physics E-worksheet to improve students' science literacy skills is valid for use.