Light and Sound Notes - Grade 4 Science and Technology | YNetStudyHub
Science and Technology Tutorial

Light and Sound

Lesson 11 of 18
1 min read Mathew Wahome

Introduction

Light and sound are two important aspects of our everyday life. They help us see things and communicate with each other.

Light

Light is a form of energy that helps us see things around us. Here are some examples:

  • The sun gives us light during the day.
  • When you switch on a torch, light comes out.
  • A candle also produces light when it is lit.

Sound

Sound is what we hear when things make noise. Examples of sound include:

  • Birds chirping in the morning.
  • A bell ringing in the school.
  • Someone clapping their hands.

Fun Activity

Try this fun activity to learn more about light and sound:

  • Find different objects that produce light (e.g., torch, candle) and sound (e.g., bell, musical instrument). Explore how they work and what makes them produce light or sound.

Remember

  • Light helps us see things around us.
  • Sound is what we hear when things make noise.
  • Both light and sound are forms of energy that play important roles in our daily lives.
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