1. Biology—photosynthesis, food chains, predator–prey, skeletal system, respiration, inheritance, genetically modified organisms, selective breeding, environmental factors on plant growth 2. Chemistry—metal reactions with acid and water, displacement reactions, corrosion prevention, salt naming, separation techniques, combustion, pH values, formula identification 3. Physics—gravity and mass, forces (balanced/unbalanced), speed, energy transfer (Sankey diagram), light reflection, Hooke’s law, pressure = force/area, voltmeter readings 4. Earth Science—sulfur dioxide and acid rain, lichen as bioindicators, igneous and metamorphic rock properties, air pollution impact on ecosystems 5. Scientific Method—fair test variables, experimental accuracy and reliability, dependent/independent variables, thermometer suitability, error identification, graph plotting