This study aimed to identify the effect of the strategy of using fish bones in developing the scientific concepts in science for the fourth grade learners. The study relied on the experimental method to detect the impact of using the fish bone strategy on the development of scientific concepts for the fourth grade learners. The study population consisted of 150 male and female learners who were selected purposefully from the fourth-grade class in the area of Al-Ghazlaneih of the directorate of education in the countryside of Damascus, 60 pupils were selected to represent the control and experimental groups.