This chapter will help you understand the concepts of Light, the reflection of light, and its associated concepts. It explains some very important topics such as reflection of light, the formation of an image on a plane mirror, spherical mirrors etc.
Electric Current and Its Effects help you in learning the concepts of electromagnetic components, their heating and magnetic effect. It proceeds to explain various aspects of electricity, symbols, circuits, electromagnetic forces and simple electric bells.
This chapter deals with the important aspects associated with the dynamics of time and motion. It explains various types of Motion, Speed, Measurement of Speed and Measurement of Time with the help of diagrams and charts. It also explains the evolution of measuring time and speed and motion through the ages.
Wind, storms and cyclones - This chapter will help you learn about natural phenomena like Winds, Storms, and Cyclones as well as their types. It mentions different characteristics of winds and all the safety precautions to be followed if hit by the natural disaster.
Have you ever felt cold in the house & warm in the sun during winters? We wear clothes made of wool to protect ourselves from the chilling cold. These woolen clothes are obtained from animals like sheep, goats, etc. During the summer wearing light colored clothes gives us a sensation of coolness. We will be studying this chapter to know if the object is hot or cold, the degree of its hotness, etc.
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