Have you ever heard music, birds chirping, or someone calling your name? That’s sound! Let’s learn how sound works and how we hear it.
🎵 What Is Sound?
Sound is a type of energy that we can hear.
It is made when things vibrate (move back and forth very fast). For example, when you clap your hands, you create sound!
🌊 How Sound Travels
Sound travels in waves through air, water, or solids.
These sound waves move from one place to another until they reach our ears.
👂 How Do We Hear?
We hear sound using our ears. Here’s how it works:
- Sound waves enter the ear
- They make the eardrum vibrate
- The vibrations travel inside the ear
- The brain understands these vibrations as sound
🔔 Loud and Soft Sounds
- Loud sounds: drum, thunder
- Soft sounds: whisper, rustling leaves
🎶 High and Low Sounds
- High-pitched sounds: whistle, bird chirping
- Low-pitched sounds: drum, lion roar
🔇 When There Is No Sound
Sound needs a medium (like air) to travel.
In space, there is no air, so we cannot hear sounds!
Dolphins use sound to communicate with each other underwater!