Hey Linda, I'm subbing tomorrow in a Physical Science class tomorrow!! : ) Its with a collab teacher, but I'm subbing for the main teacher. It is only for 2 hours unless they need me to stay on (slow - only 3rd day of school) but my daughter doesn't want to take the "cheese bus" as a Senior and wrecked her car a while back so I may as well get paid to drive her in : ) Consider this related to the post...through...science. (I couldn't find your post about chelating). You doing better? I'm kind of excited! A nice way to ease in. I get to see my kids : )