Year Four have been undertaking scientific enquiries this week for their Science topic of Sound. We began by investigating how well materials can allow sound vibrations to travel through them and ranked these in order from least to most effective. After this, we then tested the idea that sound can travel through other mediums than the air and made our very own cup string phones. Once we had built the phones, we tested them and found that different string lengths allow for different volumes. How exciting that our sound vibrations can travel through string!