Materials

This chapter discusses how a fibre from the plants is made into a fabric. It explains the detailed history of clothing material. It also talks about the types of cloth material and the uses of plant fibres like cotton and jute.

This chapter discusses sorting materials into groups. It explains in detail the materials around us and their properties. Several activities will also be given here which will enable us to identify different materials from our surroundings.

This chapter discusses the separation of substances. It explains in detail about pure substances, mixture, why separation is necessary and the methods of separation. The importance of water as a solvent is also mentioned here.

This chapter discusses the changes around us. It explains in detail the reversible and irreversible changes, physical and chemical changes, and expansion and contraction of materials.