Sound This Eureka.in Physics video shows how sound travels through the various states of matter, significance of Vibrations in the traveling of sound energy and the various type of sound waves. It also discusses about the measurement of sound and the concept of echo.
See the Science of Sound: This would be a fun science activity for my students to work on together. Allowing them to use their hands and experiment with the sounds they make would allow them to be more interested in the subject. Seeing the sugar crystals move by themselves after saying their name will definitely catch their attention.