The sound comes from the way the wire moves, called ___

Do you agree that different objects will make different sounds?

• 
• 

Different objects make different sounds because they are made of different ___.

The further you go, the sound will be ​ (a)  

• quieter
• louder

Why can't Darwin hear his sister's drumming?

• The shed door closed

• He was further away

• He was wearing his headphone

Sound is made by a guitar through the process of vibration, which creates ___ ___ in the air.

In your opinion, what is Darwin inventing?

• 
• 
• 

Why do we need to keep the string tight while using the string phone?

• to ensure the efficient transfer and transmission of sound waves

• absorbs the energy, causing the sound to be lost.