Sound & Vibration
Our line of inquiry this week was “how sounds are created”.
The children learned that energy is needed to create vibration and that vibration makes sound. We used a drum to feel and hear how sound and vibration are connected. As we were drumming, Jared noticed that if he placed his hand on the drum he could stop the vibration and the sound would also stop.
We continued Jared’s observation using triangles and cymbals making loud and soft sounds. The children found when they stopped the vibrations on the instruments, the sound stopped as well. We concluded this activity with comb kazoos. The children made kazoos using combs and wax paper. They ended with a rousing rendition of “Twinkle, Twinkle, Little Star” on their kazoos.
When we were conducting our sound and vibration experiments, the children began to notice that they could affect the sounds they heard by covering their ears. This will lead us into next week’s inquiry “how we hear sounds.”