sound

Sounds are always come from sources.

• True

• False

Sound is caused by ....

• instruments

• vibrations

• force

• volume

Sounds can be .... or .....

• high-low

• up-down

• loud-soft

Sound travels best through in ...

• solid

• liquid

• gas

Vibrations is ...

• how loud a sound is

• a very quick movement back and forth

• the loudness or softness of a sound

This animal produces ..... sound

• soft

• loud

• high

• low

This animal produces ..... sound.

• soft

• high

• loud

• low

Whisper is a .... sound.

• soft

• high

• low

• loud

Which is the loudest one?

• 
• 
• 

An object that does not vibrate cannot produce.....

• light

• sound

• heat

• electricity