Materials

The chapter discusses the characteristics and uses of man-made fibres. It explains the advantages and disadvantages of synthetic fibres over natural fibres. It gives detailed information about plastics, its characteristics and the ways to manage it.

This chapter extensively describes the physical and chemical properties of metals and non-metals with examples. Further, it explains the reactions of metals and non-metals and their uses in detail.

The chapter distinguishes between renewable and non-renewable resources. It elaborates on the steps in the formation of coal and its characteristics and uses. Further, it explains the extraction of petroleum and the ways to conserve fossil fuels.

This chapter classifies the fuels based on their occurrence. It explains the types of combustion, their differences and how to control fire. Further, it describes the various zones of a flame with the activities.