Book Series with Girl Protagonists - Page 2

[punchy]

Surprised nobody has mentioned 'The Sister's Eight' By Lauren Baratz-Logsted (with Greg and Jackie Logsted).

It's a mystery 'octology' about octuplet almost 8 year old girls. My daughter and I are loving them...  

[Specs]

Someone already mentioned Tamora Pierce's "Song of the Lioness" series, and while I think it's appropriate for a second-grader, that's just me (and IRL I'm kind of notorious for my "strange" ideas of age-appropriateness).  Anyway, Tamora Pierce also wrote the "Circle of Magic" series, which doesn't talk about menstruation or sex.  There's some violence, but it's not extremely graphic or anything.  Basic sum-up of the series: four kids (3 girls and 1 boy, all about 10-11 years old) turn out to be mages and are sent to a temple to learn how to use their magic.  One thing I really liked about the series is that the kids are raised by two women (who they reffer to as their "foster-mothers" in the second series).  Another really great thing about the series is that the kids all come from different walks of life, and they all become friends even though they have a bit of a culture clash when they first meet.