Question

can sound travel through a vacuum? Describe an experiment to explain your answer.

Answer 1

You can conduct an experiment known as THE BELL-JAR EXPERIMENT 

For this 
*Take a jar ,put an electric bell inside it .
* Create vacuum in it.
*Turn on the bell .
*You will notice that no sound can reach your ear.
This is because of the fact that sound needs a material medium to propagate.

Answer 2

Sound cannot travel through a vacuum. Because it needs a medium(air,water,solids) to travel.
Example: we cannot talk in the space which is a vacuum area where there is no medium for a sound to travel