1 Chemical Reactions and Equations 2 Acids, Bases and Salts 3 Metals and Non-metals 4 Carbon and Its Compounds 5 Periodic Classification of Elements 6 Life Processes 7 Control and Coordination 8 How do Organisms Reproduce? 9 Heredity and Evolution 10 Light 11 Human Eye and Colourful World 12 Electricity 13 Magnetic Effects of Electric Current 14 Sources of Energy 15 Our Environment 16 Management of Natural Resources