url: http://www.ndt-ed.org/EducationResources/HighSchool/Sound/speedinmaterials.htm

title: Sound Waves in Mediums

description: Several simple simulations about how sound travels through different mediums.

url: http://www.physicsclassroom.com/class/sound/u11l1a.cfm

title: Detailed overview of sound

description: Lots of details about the parts of a a sound wave.

url: http://www.physicsclassroom.com/mmedia/waves/lw.cfm

title: Compression Wave Animation

description: Shows what a compression wave looks like.

url: http://www.school-for-champions.com/science/sound.htm

title: Overviw of wave parts

description: Fairly straightforward view of the parts of a wave.

url: http://www.ergonomics4schools.com/lzone/noise.htm

title: Hearing and decibal range

description: Some nice hearing simulations and sounds.

url: http://www.physicsclassroom.com/class/sound/

title: Everything sound related

description: An entire online physics unit about sound.

url: http://www.youtube.com/watch?v=_ckjttBin58&feature=player_embedded

title: Bell in Vacuum Video

description: