This sound and music kit is used for the study of sound waves. Students can learn how sound waves travel with ?Slinky? and vibration with tuning fork with different level of pitches. With different sizes of tuning fork, you can observe the difference is sound and pitches if the length and the thickness of wire is different. This can be used to test the structure of human?s ears. This set of apparatus consists of 4 pipettes, 2 tuning forks 512Hz, 2 tuning forks 256Hz, a rubber hammer, 4 packs of wires, and 4 ?Slinky?.