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Water scarcity poses a significant global challenge, which is often overlooked, particularly in regions with abundant water resources. This article outlines a curriculum designed for middle school students (grades 6–8) that addresses the dynamics of water scarcity and sustainability through five detailed lessons centered around the water cycle. The curriculum is designed to meet the Next Generation Science Standards, specifically focusing on standards ESS2.C and ESS3.C. These standards highlight the importance of water in Earth’s surface processes and the impact of human activities on the environment. The lessons also emphasize scientific modeling and using data as evidence as crucial to understanding water security and action. By emphasizing student voice and incorporating diverse perspectives, the curriculum aims to educate students and empower them to actively address real-world environmental challenges. 

In response to the growing emphasis on addressing global socio-scientific issues like climate change and viral pandemics in K-12 education, we designed three socio-scientific units for middle school science. We call this curriculum Grand Challenges (GC). The GC curriculum shifts from traditional methods to a focus on socio-scientific issues that resonate locally and globally and prepare students for future complexities. GC is a response to the evolving landscape of science education which emphasizes transformative, future-focused approaches that engage students with science content through contextualized, disciplinary practices. This study explores the implementation of the GC curriculum by two teachers, highlighting their choices and the impact on instruction. The findings reveal the crucial role of teachers in actualizing innovative curricula, the challenges of adopting new practices, and the need for robust support systems. This work contributes to understanding how to effectively integrate socio-scientific issues into science education, fostering critical thinking and global citizenship among students. 

Justice-centred science pedagogy has been suggested as an effective framework for supporting teachers in bringing in culturally relevant pedagogy to their science classrooms; however, limited instructional tools exist that introduce social dimensions of science in ways teachers feel confident navigating. In this article, we add to the justice-centred science pedagogy framework by offering tools to make sense of science and social factors and introduce socioscientific modelling as an instructional strategy for attending to social dimensions of science in ways that align with justice-centred science pedagogy. Socioscientific modelling offers an inclusive, culturally responsive approach to education in science, technology, engineering, the arts and mathematics through welcoming students’ diverse repertoires of personal and community knowledge and linking disciplinary knowledge with social dimensions. In this way, students can come to view content knowledge as a tool for making sense of inequitable systems and societal injustices. Using data from an exploratory study conducted in summer 2022, we present emerging evidence of how this type of modelling has shown students to demonstrate profound insight into social justice science issues, construct understandings that are personally meaningful and engage in sophisticated reasoning. We conclude with future considerations for the field.