Physics

This chapter describes about the speed of motions of objects. There are different types of motions.

The chapter covers the concept of heat and its measuring instruments with the properties of heat and cold. It mentions the degree of temperature including Celsius, Fahrenheit and Kelvin scale.

From this chapter, we will understand weather and climate. We will learn the various factors and how to measure the components of different weather by using instruments. The effects of weather on our lifestyle are also explained here in detail.

This chapter explains the concepts of electric current, electric circuits and electric resistance. Moreover, it describes the electric potential and potential difference. In addition, it explains the heating effect of current and electric power.

This chapter highlights how air exerts pressure and how air expands on heating with the activities. We will learn about the wind, cyclones and the destruction by cyclones. It also discusses some dos and don’ts of cyclones.

From this chapter, we will understand the reflection of light with some activities. It describes the laws of reflection and the types of reflection with the help of a diagram. A brief note on periscope and kaleidoscope are also given here.