Year 4 Science – Sound: Cup Telephones

Nov 30, 2023Science

For our science work on understanding sound in our second half term, we explored making paper cup telephones! We had already learnt that sound travels through solids, liquids and gases but in this session we discovered that the sound energy vibrates the particles of the medium it is passing through and that when it passes through a solid (like a paper cup and a string), the sound waves are not as dispersed. In a gas (like the air we normally speak through), the particles are spread out and so the sound waves don’t travel as well as through a solid. We had great fun trying to hear what our partners were saying to us!