Materials

In this chapter, we will learn about polymers, their different types and their properties. It describes man-made materials like synthetic fibres, plastic and their uses. It also explains the types of plastics and their advantages and disadvantages.

This chapter explains the physical and chemical properties of metals and non-metals and the differences between them. It explains the uses of metals and non-metals. It also explains alloys and corrosion in metals, including ways to prevent corrosion.

This chapter explains combustion and its types. It discusses the conditions necessary for combustion and the need for extinguishing the fire. It also explains flames, zones of a candle flame, fuel efficiency, and the harmful effects of burning fuel.