How Sound Travels | NASA Online | Knowitall.org | Sound, Learning targets, Sound waves
Sound - The science of waves, how they travel, how we use them
Characteristics of Sound | CK-12 Foundation
Understand that sound waves are produced by vibrating objects, and that sound requires a medium to travel through. Understand the links between amplitude, - ppt download
sound | Properties, Types, & Facts | Britannica
SOL 5.2 Sound - Standards
Waves Chapter 10. The Nature of Waves wave: repeating disturbance or movement that transfers energy through matter or space -examples: light, ocean, sound, - ppt download