Explore how energy transfer depends on material and mass with this middle school science lab, which includes graphing practice and CER writing. Over the course of four days, students measure temperature changes in metal, sand, soil, and water under the same energy input, graph the data, and construct explanations supported by evidence and reasoning. This resource includes: • Editable slideshow and detailed lesson plan • Printable + Google Slides student pages and data tables • Graphing &