MUSIC
Note Values
Each note has a specific duration. 
The Music Lab - The basics- http://www.sfskids.org//templates/musicLabF.asp?pageid=23
Pitch = notes: http://www.sfskids.org//templates/musicLabF.asp?pageid=13
A game to learn the pitch (note names) - http://www.classicsforkids.com/games/notename/notename.html