Dear families of Mr. Abbott's class,
As I hope you are aware, tomorrow we bid a sad farewell to our sound unit with a cacophonous celebration: The Great Noisemaker Parade of 2014! If you plan on attending please be on time or early, for great though it may be, long it is not. :) 2:15PM is our prompt start.
Our sound unit is marked by investigations followed by rigorous scientific discussion of principles. Here are some pictures from one of these investigations into how length of an object vibrating affects the pitch of the sound!