I am only in 7th grade and I have figured out I am bi. How do I tell anyone? My family all accept that sort of thing, but it's so weird to talk about. I want my friends to know, but they're all girls and I'm afraid things would get akward... Please help.

oh gosh...I had the same problem only was I was younger, like 10.
How to tell people, well I learned being blunt is the best thing, Just go to them and say " I am Bi, I like boy, and girls and I ask you respect that"
I know it's hard to tell people but being blunt is the best. And I will not Lie it will be awkward ,
but you don't have to tell anyone. it's something that does not really change anything :/
im Bi and I told my parents - _- I should not have cause my mother is a homophobic and I knew she was, BUT I felt I needed so I just told her,
so my advice xD just be blunt it's so much easier then shying away from it,

I was in your exact position, friend. All ya gotta do is tell 'em. They're stupid if they think you being attracted to a small percentage of their same gender should make things awkward, 'le~! (To put things bluntly)

Well, I'm a guy and I have a lot of gay friends. Nothing to worry about. It's just like my female friends, just friends and I don't want to go out with them. They'll understand it, I'm sure :3

I'd say don't be afraid of who you are. It shouldnt be treated like its a bad or taboo thing its perfectly normal. And if a friend is gonna be a idiot about bit then your better off not having them as a friend anyhow. Harsh but truth.