At the end of the Bill Nye videos he always has a fun song that goes with the episode. You can find many of the songs as stand alone videos on YouTube.
This came in handy because today I am teaching a lesson on layers of the atmosphere and found a song from his Atmosphere video on YouTube titled "Fresh Aire." I really wanted to remix it and put the lyrics on the video (so the kids could sing along and see how the lyrics matched the lesson). The first thing I did was found a site that has all the Bill Nye lyrics posted used my YouTube downloader (see instructions here) and downloaded the song. I then imported the video into Movie Maker Live and used the caption feature to put the lyrics on the different frames (cutting and pasting from the lyrics site into Movie Maker Live). I saved the video and reposted to YouTube so other teachers could use the video with lyrics (the finished video is posted above).
The process was pretty easy and I am thinking about doing it for more of the Bill Nye songs. My favorite is the "Jump Jump" version of the water cycle.