1. Biology: Venus flytrap adaptations (leaf trapping, root nutrient absorption), stem functions (support, transport), fossil identification using dichotomous key, plant and animal cells (structure, function), species definition and predator impact, soil types and their properties (clay, peat, sandy). 2. Chemistry: magnesium-oxygen reaction forming magnesium oxide, indicators for acid/alkali detection (pH values, colour changes), energy transfer in electric lamps (input/output, conservation), particle model for states of matter (distance, movement, force), neutralisation concept. 3. Physics: famous astronomers and solar system model history (Ptolemy, Copernicus, Galileo), gravity on trampoline, force and motion (weight, direction), muscle action (biceps/triceps, antagonistic pairs), sound wave modeling with Slinky, force for higher jumps. 4. Earth science: energy sources and transformation, soil classification by texture, pH, organic matter, Earth history via fossil identification, parachute experiment (area vs time, anomaly detection), floating object weight-depth measurement. 5. Scientific method: data analysis (mean calculation, anomaly identification), using indicators, drawing conclusions from tables and graphs, choosing appropriate equipment (spring balance, ruler), using diagrams to explain forces.