We just started studying sound in 1st grade. To test how vibrations carry sound waves we built cup phones. Below the pictures you can see the directions to make your own at home. Here are students from Ms. Coyne's, Mrs. Foote's, and Mrs. Moffett's class build and test their phones:

Join Jessi and friends as they learn about sound waves by making a string phone! Plus, learn how to make your own! #sciencegoals ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids?