Entirely impossible to answer from here. Can be something quite unimportant like temporary soreness either from exertion or an accident while playing, or something a little important like ache from growing too fast, or something nasty and serious. If it persists, take her to a doc. Not the ER though.
rocker panels
Bottom of the oil pan.
take it to a mechanic!!
2 and a half
Look on bottom area or engine
Umm, at the bottom most point of the engine block...
If you can not see it on the bottom of the rad or on the side members at the bottom of the rad the it dose not have one.
More bottom end torque!
its built into the bottom of the coolant reserve tank
No,because about half of his fans are 10
im 11 and i did the half a mile in 2 minutes and 25 seconds im trying to get 2 minutes
On the bottom of the overflow / surge tank (passenger-side fender)