Ms. Dobelle's Science Class Works With Mechanical Waves

Ms. Dobelle's 8th-grade science class at UHMS conducted labs on mechanical waves. The experiment focused on which medium conducted sound better. Did styrofoam cups sound better than plastic cups when making string telephones? A bit of fun while learning.
 
a group of boys with cups and strings listening to each other    a young man listening into a Styrofoam cup
 
 
a group of girls with cups and strings listening to each other     class laughing at each other holding onto cups with strings