1. Human Digestive System and Enzymes – Identifying digestive organs, explaining their functions, and analyzing enzyme activity at different pH levels. 2. Physics: Motion and Forces – Interpreting distance-time and speed-time graphs, and calculating force and mass using Newton’s second law. 3. Chemical Reactions and pH – Writing balanced equations, calculating molecular masses, and measuring acidity changes in reactions. 4. Circulatory System and Blood Vessels – Matching blood vessels with the organs they supply, understanding their roles in circulation. 5. Energy Sources and Biofuels – Describing energy conversions in biofuel usage and advantages of renewable energy sources. 6. Transpiration and Environmental Factors – Investigating how wind, temperature, and light affect transpiration rates in plants.