What You Need:
- Cardboard paper towel tube
- Smooth the newspaper over one end of the cardboard tube.
- Tape the newspaper so that it is tight and flat.
- Place your fingers over the newspaper end.
- Sing through the opposite end of the tube.
- The sound you make sends vibrations through the air in the tube, making the newspaper shake.
Although there are many different sounds, they have one thing in common, sound is produced when something is vibrated. This vibration of sound moves backwards and forwards. Sound reaches our ears by the air being vibrated. When sound waves travel through the air the vibrations reach our ears and they make our eardrums vibrate. This then sends a message to our brain and the brain hears the sound. Sound waves need a material to travel through or they cannot travel from one place to another. Sound cannot travel through a vacuum as there is no air.