🌾 Chapter 1 – Crop Production and Management
🦠 Chapter 2 – Microorganisms: Friend and Foe
🧵 Chapter 3 – Synthetic Fibres and Plastics
🔩 Chapter 4 – Materials: Metals and Non-Metals
🔥 Chapter 5 – Coal and Petroleum
🔬 Chapter 6 – Combustion and Flame
🌿 Chapter 7 – Conservation of Plants and Animals
🧬 Chapter 8 – Cell: Structure and Functions
🌱 Chapter 9 – Reproduction in Animals
🌸 Chapter 10 – Reaching the Age of Adolescence
⚡ Chapter 11 – Force and Pressure
⚙ Chapter 12 – Friction
🔊 Chapter 13 – Sound
⚡ Chapter 14 – Chemical Effects of Electric Current
🌠 Chapter 15 – Some Natural Phenomena
💡 Chapter 16 – Light
🌍 Chapter 17 – Stars and the Solar System
🌊 Chapter 18 – Pollution of Air and Water
