At Harrison Park Elementary School (Penn-Trafford School District) Mrs. Hoffman's fourth-grade science classes are studying various types of energy. Most recently, they explored sound energy and how it travels in waves by vibrations. They completed a hands-on activity of making "telephones" with cups, strings, and paper clips.
Nico Biskup and Emerson O’Connor try out the cup telephones
Sierra Mason and Delilah Montenary assemble their project
Jaxon Merola and Beckett Burmeister experiment with sound energy
Caelyn Duddy and Nina Padezan
Elijah Jarboe and Sylas Storer