You should carry no more than 10% of your bodyweight. For example if you weigh 45kg you should only have a 4.5kg bag at the absolute maximum.
If you carry more than this (such as 6kg) you will be in danger of seriously injuring your back and could get scoliosis or other back related injuries. The best thing to do is to try and leave as much stuff in lockers or at home. Hope it helps!
Average weight for a 13 year old girl is 28 to 74 kgs.
67lbs
she should be 80 or 85
All bodies are different, there is no specific weight for a 5'2 12 year old girl. Ask your doctor.
do you mean weight? A ten year old girl should weigh in between 80-94 pounds.
around 120 pounds
No
It depends on her height!
lose weight!
around 120
about sixty-five pounds
About 5 stone.