In Primary 4 we have been learning about sound for the last few weeks. We created some paper cup telephones to discover how sound travels through vibrations. We were quite surprised by how loud the sound was! We also did some experiments with different pitches and what makes a high pitch and what makes a low one. We made some scientific hypotheses about why the sounds were different and wrote them on the board.
"Vibrations create sound" - Andrew
"Vibrations travel across particles in the air and it goes on and on until it gets to your ear"- Connor
"Your eardrum vibrates when you hear a noise and a message is sent to your brain"- Jake