Week 4 Lesson Objectives
LEARNING GOAL
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What we did in class
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Sound is really complicated. This week we learned how sound is produced by vibrations. Mrs Marini passed around her mobile phone so we could all feel it vibrating, then we put our hands on the front of our throat while singing Let It Go and Gangnam Style. This was for us to feel the vibrations of our vocal chords while we were singing. We also felt sound vibrations through a balloon.
We talked a little bit about atoms and molecules and learned that they are teeny weeny tiny little particles that make up all things. Mrs Marini said it was high school physics! When a sound is produced, like when we tapped on our elbow, the movement pushed the molecules in my elbow, and then those molecules pushed the ones next to them, and then those push the next ones, and so on... We watched rice bouncing on a tambourine when the drum was hit and the drum skin was vibrating. We could even hear the sound vibrating! We drew a labelled diagram to show how the sound travels through vibrations. |