Materials

This chapter explains that cloth is made up of fibre. There are many types of fibres acquired from both plants and animals. It also explains how plant and animal fibres are processed to make cloth. The cotton plant is extensively used to make cloth.

This chapter explains that all objects around us can be classified into groups depending on the properties of the materials used. Each material has unique properties, which make it viable for a certain use.

This chapter explains that changes are of two types: reversible or transient change and irreversible or permanent change. It also talks about how objects undergo changes of expansion and contraction.