1. Ecosystems and Food Chains – Identifying herbivores, predators, and producers, understanding food chains, and the role of decomposers in decay. 2. Forces and Motion – Air resistance in parachutes, gravity’s effect on falling objects, streamlining, and the impact of friction on different surfaces. 3. States of Matter and Changes – Identifying irreversible changes, dissolving and filtration limitations, evaporation methods, and the states of substances based on their properties. 4. Electricity and Circuits – Identifying circuit components, brightness of bulbs based on resistance, the role of conductors and insulators, and functions of electrical symbols. 5. Human Biology and Adaptations – Pulse rate increase during exercise, circulatory system components, classification of organisms by skin type, and factors affecting plant growth. 6. Scientific Investigation and Data Analysis – Conducting fair tests, identifying errors in data collection, interpreting experimental results, plotting graphs, and predicting patterns based on observations.