Busy Beavers iPhone App: \rbrWebsite: - Kids English Learning Resources - MP3s, Worksheets, Flash Cards, Games and more!\rbr\rbrThis is as easy as it gets - Four color names - Red, Green, Yellow and Blue.\rbrCareful! This melody is catchy. Youll be humming it for days. \rbrYou can watch this whole video by becoming a paying subscriber to our website.