1. Human biology and health: blood cell functions, red blood cell size vs animal mass (data interpretation), diffusion in gas exchange, balanced diet nutrient-function matching 2. Chemistry and physics: chromatography setup and interpretation, atomic structure (Rutherford model), electrostatic attraction, reflection (angle, ray diagram, safety) 3. Space science: asteroid proximity to Earth, crater formation by impact, model testing with ball-drop, Moon surface observation 4. Energy and sustainability: solar-powered water heater, bioplastic materials, renewable vs non-renewable energy identification, electromagnet construction 5. Ecology and magnetism: magnetic field interpretation, pole interaction explanation, magnet pair push/pull reasoning 6. Cellular respiration: aerobic respiration (location, reactants/products, energy release), respiration-related crossword puzzle