The study aimed to identify the most common challenges faced by science teachers in activating the school laboratories. To achieve the objectives of the study, the researcher followed the analytical descriptive method in terms of applying the study tool and data collection and analysis. The study population consisted of all the teachers of science and educational supervisors in Jerash Education Directorate. There were 15 teachers and five educational supervisors. The study found that there are a number of challenges facing the science teachers in activating the school labs, the most important of which is the low number of classes devoted to teaching science, the researcher recommended the need to work to restructure the distribution of classes of science and increase the time allocated for practical activity.
Keywords: Challenges, Laboratory, Science