What is a 12 year old workout plan for a girl?

Try to run at least ten minutes a day, if you can. Also 10-15 pushups and 20 curlups, or as many as you can do. Then do 50 repitions of a five or ten pound weight, at 10 rep intervals. Don't forget to stretch and try to do about 30 minutes of aerobic exersize (sports, active games, etc) a day. Hope this helps!