Netflix has the worst search features! I usually search amazon or some other source with my keywords, and when I find a video I like the looks of, I type that specific thing into netflix and see if it shows up. Sometimes their suggestions are good, but usually not so much…
I second the Imax suggestion – for solar system I have a History Channel series called “The Universe” in my streaming cue that we have watched several seasons of, also a BBC series “The Planets” – I would describe us as a secular science family, so I really couldn’t say how you will feel about the science in any of these movies, a lot of them do talk about the age of the universe. Preview them, I guess? Same with the Walking with Dinosaurs series – but this may be too intense for a 5yo. anyway. Lots of eating other dinosaurs LOL.
I like a lot of the travel type videos for geography. We loved Nat Geographic’s Amazing Planet. Also Discovery Atlas: Uncovering Earth. All the episodes of Liberty’s Kids are available for American History, if you like that kind of thing.
I guess that bad search engine aside, Netflix has been a wonderful resource for us, and I am trying to decide whether to cancel my dvd option due to the new price increase. Just switching to redbox (that is what everyone I know is doing) doesn’t really do me any good, because I never order new releases – just older or obscure movies that aren’t available streaming.