You can add me on the list of going on 2 years. We started it in September and are currently starting lesson20 today. We add in a LOT of Bill Nye the Science guy videos to introduce the topic – Free on Youtube! (As always, be careful of the “millions of years ago” – but my kids know that’s a big farce, and they get SO much out of that show, that positive far out weighs the little negative.) My kids are 7 and 4.
In Nov/Dec we had no science (we do a light day schedule during that holiday time). Right now we are doing once a week – we’ll be moving it to twice a week come March, and still – it will take us a bit to get through it all, but that’s ok because we LOVE it! It’s like taking little tiny bites to make your favorite meal last a little longer!