Sound

Scientific Question

What does this pattern mean?How does it tell us about the sound?

How is sound caused?

Sound is caused by Vibrations in the air

What is Vibration?

The atmosphere of a place, or the associations of an object, as communicated to and felt

by others.

Speaking and Hearing Waves

When we speak, the sounds we make cause vibration.

We hear sounds as the vibration travel through the air.

Making Sounds

When you hear someone speak, you can tell the emotional state he’s in.

The difference between everybody’s voice is the pitch in it.

What is Pitch?

Pitch: How high or low the sound is.

From: Khalid MohammedClass: 8\BTo: Mr. AbuBakr Shalaby