CER Science Writing Prompt - Human Populations - Earth ScienceEngage your students in evidence-based scientific writing with this CER (Claim-Evidence-Reasoning) prompt focused on gravitational force and mass—a core concept in middle and high school life science curricula. This ready-to-use resource challenges students to analyze data about human populations and natural resources. Using the CER format, students must construct a scientific explanation to answer the question: " What impact does inc