1. Physical and Chemical Changes – Differentiating reversible and irreversible changes, identifying methods of separation, and understanding changes of state. 2. Forces and Motion – Effects of friction, gravity, and upthrust, balanced and unbalanced forces, and factors influencing the brightness of a bulb in a circuit. 3. Ecosystems and Food Chains – Identifying producers, consumers, and predators, classifying organisms based on diet, and analyzing food web relationships. 4. Light, Shadows, and Materials – Properties of opaque objects, how light travels, reflection, and effects of moving objects relative to a light source. 5. Electricity and Circuits – Conductivity of materials, interpreting circuit symbols, and predicting changes in electrical brightness with different components. 6. Scientific Investigation and Data Interpretation – Conducting fair tests, analyzing variables in dissolving sugar, structuring data tables, and plotting results on a bar chart.