Physics

This chapter discusses heat. During winter, woollen clothes help us to keep warm. During summer, light-coloured clothes help keep us cool. There are specific clothes for particular seasons.

This chapter discusses winds; how cyclones and storms occur. It also describes how air exerts pressure. Occurrence of some cyclone is also discussed here.

This chapter describes the speed of motions of objects. We will learn that there are different types of motions.

This chapter describes the electric current and its effects, such as heating and magnetic effect of electric current, electromagnetic effect, etc.

This chapter describes about the properties of light, its reflection in mirrors, and images formed by lenses.