1. Biology Focus Areas
- Human Digestive System: Know the path of food from mouth, esophagus, stomach, small intestine (duodenum & ileum) to large intestine. Memorize main enzymes (amylase, protease, lipase).
- Photosynthesis: Equation: Carbon Dioxide + Water + Sunlight → Glucose + Oxygen.
- Circulatory System: Structure of the heart (4 chambers), difference between arteries, veins, and capillaries.
2. Chemistry Focus Areas
- States of Matter: Solids, Liquids, and Gases (particle arrangement and movement).
- Acids, Bases, and Indicators: Acids turn blue litmus red (pH 1–6); bases turn red litmus blue (pH 8–14); neutral substances (pH 7).
- Elements, Compounds, and Mixtures: Symbols for first 20 elements of the periodic table (H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca).
3. Physics Focus Areas
Speed, Distance, and Time Formula:
Formula: Speed = Distance ÷ Time (\(s = \frac{d}{t}\)).
Question: A bus travels 150 km in 3 hours. Calculate its average speed.
Solution: Speed = 150 ÷ 3 = 50 km/h.
Formula: Speed = Distance ÷ Time (\(s = \frac{d}{t}\)).
Question: A bus travels 150 km in 3 hours. Calculate its average speed.
Solution: Speed = 150 ÷ 3 = 50 km/h.
4. Drawing and Labeling Science Diagrams
ECZ examiners reward clean, ruled label lines drawn with a sharp pencil. Never let label lines cross each other!