1. Biology: health comparisons (smoking, fitness levels), vitamin A function, high-fat diet effects, aerobic respiration (equation, mitochondria site), joints and antagonistic muscles, breathing rate change after exercise. 2. Chemistry: exothermic reaction identification, reaction of iron with sulfuric acid (word equation), solubility and concentration comparison, chemical formula writing (CO₂, HNO₃, NaNO₃), symbol equations involving acids and salts. 3. Physics: white light dispersion and color addition (magenta, cyan, yellow, white), electromagnet construction (iron nail, wire, battery), strength factors (current, battery count), speed calculation using distance/time, equipment for measuring time and distance. 4. Earth and space science: asteroid characteristics, crater formation, asteroid orbit time and radius, speed inference, climate vs weather distinction. 5. Environmental science: woodland ecosystem habitats, hypothesis testing for species change, fair test variables, dependent variable identification, pesticide effects on non-target species (quoll), invasive species (cats) effect on food web.