1. Biology—plant parts and reproduction (pollination, fertilisation), classification of animals (vertebrates/invertebrates), food chains, adaptations, predator-prey relationships 2. Chemistry—particle model (solid/liquid/gas), melting/boiling points, states of matter, physical vs chemical changes, diffusion, separation of mixtures, irreversible changes 3. Physics—forces (push/pull, balanced/unbalanced), friction, speed = distance ÷ time, light travel (reflection, shadows), hearing ranges, sound vibrations, electric circuit basics 4. Earth Science—rock formation (sedimentary, igneous), weathering and erosion, fossilisation, fossil fuel usage, pollution indicators (lichens), renewable energy 5. Scientific method—planning experiments, identifying variables, safety precautions, interpreting thermometer and circuit readings, pattern recognition, result reliability