What is sound?

• A type of energy by vibrations

• A type of energy by movement

Sound is made when things . . .

• be quite

• move

If we see from the picture. Does it make a sound or not?

• Yes, it does.

• No, it does not.

How to make this fan make a sound?

• Turn on the fan

• Turn off the fan

The sound of this alarm clock is . . .

• Soft

• Loud

Which is the loud sound?

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• 
• 
• 

Which is the soft sound?

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• 
• 
• 

How is the sound of this animal?

• Quack

• Oink

What is the kind of this music tools?

• String Instruments

• Wind Instruments

Examples of percussion instruments below are . . .

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• 
• 
•