During this live online class, students created their own karst topography (cave landforms) and added water to their models to produce sinkholes in real time. The class was originally scheduled for 50 minutes, but we extended it to 90 minutes to ensure that all of the students successfully completed their projects despite limited materials. Queen Palmer is a Title I school, and many students don’t have access to even the most basic materials (including paper cups, string, and tape). But these students are very creative, and made our labs work with the materials that they do have at home.