Materials

In this chapter, we will discuss natural and man-made fibres. It describes the different stages to make fabric from different plant fibres and other fibres. Synthetic fibre and its characteristics are also discussed here in detail through examples.

In this chapter, we will learn to classify the materials according to their shape, properties and uses. The need for classification of materials and the advantage of doing so are also discussed here in detail.

In this chapter, we will learn the different methods of separating substances. It also explains the differences between pure substances and impure substances. Types of mixture, solutions and solubility are also discussed in detail here.

In this chapter, we will get to understand the different changes occurring around us. Differences between reversible and irreversible, physical and chemical changes are also elucidated here through examples and activities.