Is it normal for a nine-year-old in third grade to weigh more than her brother in sixth grade?

AnswerIt depends on how much the sixth grader weighs. The normal weight for a third grader is usually 40-60 pounds. If the third grader weighs more than that then talk to a doctor about putting he/she on a diet.

Not so. My son is in 3rd grade and he weighs 70 lbs. He is muscular and has broad shoulders. He isn't AT ALL fat. Watch what advice you're giving about putting a child on a diet.