How do I ask this one girl out?

Ok I really like this 1 girl. We are both in the same class in 6th grade. We are also really good friends. Plus, I'm afraid that I ask her out, all my friends will make fun of me. Also, if she says no, it might end our friendship. What do I do ??? And plz don't say that I'm too young ! I can do wat I want to

I say ask her to do something like work on a school project together or go bowling with a group of people. Then it's not totally obvious you like her/are asking her out so if she says no, no big deal. If she says yes you can spend time with her as part of a group or working on something neutral to get to know her better and give her a clue you like her.