Materials

Separation is necessary when we want to separate the unwanted substances. This chapter explains different methods of separation of unwanted substances along with activities and examples.

In this chapter, you will learn the history of clothing and the process of making fabric from the fibre. Here, you will learn about natural and synthetic fibres and their examples. It also consists of activities based on making clothes.

This chapter discusses the various properties of materials that help for the grouping of it in detail. Further, it explains the attraction towards the magnet and conductivity of heat and electricity.

This chapter describes the changes occurring around us. It explains reversible and irreversible changes with examples. Further, it describes the physical and chemical changes and expansion and contraction of materials with the help of activities.