The Universe in a Nutshell - Michio Kaku

This is probably one of the most concise, most interesting, most informative and most layman introduction to the four fundamental forces that I have watched. It kept me riveted to the screen for 42 mins even though I knew every facts explained in the video.

This video is a must for upper secondary and junior college students to watch as an introduction to the four fundamental forces and a brief glimpse of the wonder and beauty of Physics. It should replace the boring five minutes we accord to the fundamental forces when we lecture.