The current study aimed at identifying the amount of sustainable development dimensions were included in the developed science curriculum for the fifth grade in the Sultanate of Oman. The sample of this study consisted of analyzing the content of the students' textbook and activity book for the fifth grade for the first semester of the academic year 2020-2021. A descriptive content analysis was adopted to achieve the purpose of the study. A content analysis card was further designed that

more »

... d the dimensions of sustainable development (the environmental dimension, the social dimension, and the economic dimension) and the reliability was checked by some academic referees. The results of the study revealed that the content of the analyzed textbooks included all dimensions of sustainable development, to varying degrees. The availability of social dimension was the highest with (80.07%) percent, followed by the environmental dimension with a percentage of (13.41%), and the lowest dimension was economic with (6.52%) percent. Increasing the availability of sub-issues in the content of the analyzed science curriculum that did not appear sufficiently compared to others was recommended due to its relevance to achieve sustainability.