1. Plant biology—structure and function of roots, stems, leaves, photosynthesis, water transport in plants 2. Life cycles—animal and plant life stages, reproduction, metamorphosis in insects and amphibians 3. States of matter—solid, liquid, gas comparison, heating and cooling effects, condensation and evaporation 4. Electricity—simple circuits, conductors and insulators, symbols and circuit diagrams, effects of changing components 5. Scientific investigation—fair testing, hypothesis formation, variable control, data collection and pattern recognition 6. Environmental science—habitat impact, pollution, recycling and sustainability, human influence on ecosystems