Combined Science (B) J260,08 Higher June 2019, OCR GCSE Past Papers with Mark Schemes

The provided mark scheme evaluates candidates′ understanding of scientific principles and their ability to apply knowledge, analyze data, and justify conclusions. It addresses physics, chemistry, and biology topics, emphasizing calculations, procedural accuracy, and conceptual clarity. Key areas include hydrocarbons, molecular structures, energy efficiency, reaction rates, and environmental impacts. Assessment focuses on interpreting experimental data, optimizing scientific methods, and linking theory to real-world applications. Levels of response are graded on accuracy, logical reasoning, and depth of analysis, aligning with objectives like evaluating efficiency, explaining reactivity trends, and improving experimental designs.