Materials

In this chapter, we will learn to differentiate between natural and synthetic fibres and analyze the advantages and disadvantages of synthetic fibres. We will also learn about different types of plastics, their uses and their effects on the environment.

In this chapter, we will learn to classify elements into metals, non-metals, and metalloids. This chapter explains the physical and chemical properties of metals and non-metals. We will also discuss the chemical reactions of metals and non-metals in this chapter.

This chapter lists the different types of natural resources and explains the formation and composition of coal and petroleum. It explains the process of extraction and refining of petroleum. The importance of conserving fossil fuels is also discussed here.

This chapter classifies substances into combustible and non-combustible substances and explains its types. This chapter lists the conditions necessary for combustion. It also explains about fuel, its types, and the characteristic features of an ideal fuel.