<![CDATA[Scientific reasoning is a thinking skill that students need in the 21st century to prepare them for global challenges. The research aims to develop STEM-based worksheets (Science, Technology, Engineering, and Mathematics) on global warming, which is expected to improve students' scientific reasoning skills. This research includes the Research and Development (R&D) method. This research describes the validity of the worksheet conducted by two Physics Education study program experts. The results show that the STEM-based worksheet is very valid, averaging 93.29%. Thus, the STEM-based worksheet on the topic of global warming that has been designed can be used in high school learning to improve students' scientific reasoning skills.]]>
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