1. Biology: digestive system organ-function matching (stomach, pancreas, intestines), water transport in plants (xylem structure), photosynthesis and light color effect on growth, respiration equation, blood vessel structure (artery muscle/elasticity). 2. Chemistry: element-symbol matching (N, Na, Si, etc.), compound and mixture identification (e.g. seawater, sodium chloride), rusting reaction and compound formation, particle types in elements (atoms), chemical compound modeling diagrams. 3. Physics: sound wave analysis (loudness, pitch, frequency), light behavior (filter transmission, prism reflection, color combinations), magnetism (attraction and repulsion explanation), moment calculation and force distance relation. 4. Data and graphs: cyclist speed-time graph plotting and labeling, speed calculation (distance/time), oscilloscope waveform interpretation, absorption and transmission of light, scientific predictions based on structure and effect. 5. Scientific method: fair testing (light filter plant growth), variable control, result measurement (leaf count, height), chromatography-like ink separation, magnetic field analysis and drawing.