Sound

With the help of various activities, we will come across the production of sound. It explains how the vibrating tuning fork produces sound. We will also observe the result when both the prongs of the vibrating tuning fork are dipped in water.

In this topic, we will learn about sound energy. The concept is explained through an activity. Here, a phone is kept in a container with a closed lid, small particles are placed on the lid. Results are observed when songs are played.

The topic includes various instruments and the sound of the music they produce. It stresses on observing the changes in sound when played different instruments or objects. It also introduces popular musicians of all time.

In this topic, we will study the organ responsible for producing sound in human bodies. The sound produced in a specific order constitutes speech in human beings. It includes activities that help in observing the movement of vocal cords during speech.

Sound is produced by vibrating objects. Here, we will study about the types of materials or substances required for the transmission of sound. It discusses characteristics of sound waves and also mentions the speed of sound in different mediums.

In this topic, we will learn how the human ear responds to sound waves. It comprises the structure and functioning of the eardrum. It mentions that the ear consists of three sections, and the movement of fluids in the ear produces sound.

Through this topic, we will study different characteristics of sounds. They are loudness, feebleness, and amplitude. It includes activities to illustrate the characteristics in an interesting way. It also explains the terms, pitch and frequency.

This topic talks about different ranges of sound. It explains noise, music, and sound pollution using suitable examples. We will also learn that the sounds that normal human beings can hear are called audible sounds.