In this lab, students investigate a device called a "clucking chicken". Through their experimentation, students look at how vibrations travel from particle to particle to create sound,
The investigation also looks at how varying the energy input to the system can also affect volume, as well as pitch.
Materials needed are disposable plastic cups, paperclips, string, and 1-2 cellulose sponges.
I've included a video explanation of the lab, as well as the student instructions. Unfortunately, with the fact that it's all live motion, and I wanted to make the video playable on any device, I had to scale it down to 720p, as it was just over the 200MB limit in full HD.
My 7th graders love doing this activity every year...the parents, less so....Something about their kid coming home, and asking for a cup, a paperclip, and some string...seemingly harmless objects...