The Fluid Earth (FE) is an interactive data visualization initially developed for learning about Earth's atmosphere in informal educational settings. In this study, we tested FE in middle school classes to assess student engagement in a formal educational setting. Using a quasi-experimental design, students were assigned to interact with the data visualization website (high interactivity) or prerecorded videos of the visualization (low interactivity). Students who used the website demonstrated greater engagement and perceived learning than students who used videos, but no differences were observed for behavioral intentions to use FE in the future. Results provide preliminary evidence that the interactive interface provided a more engaging educational experience than videos. Findings suggest that interactivity is an important component of science education visualizations, and there is value in creating interactive tools for students to explore geosciences processes and concepts. Additional work is needed to assess the visualization's impact on student learning of content knowledge and its applicability to more diverse student groups.