This research aims to determaine the validity and realibility of HOTS question in class V SDN 40 Palembang on the theme of clean air for health. The type of research used is Research and Development(R&D). The research procedure used is the development of Borg and Gall. The research was tested on 24 students of class V SDN 40 Palembang. In this research, the researcher made a HOTS questions with…