1300grams
My science teacher and me both agreeed on 1300g
54 kg I am 13 and weigh about 8 stone
i dont know not that heavy ..im guessing
no that's not heavy, that is actually the average weight for a 5th-6th grade girl.
About 1,440 grams This is a great site for finding out facts about the brain & nervous system: http://faculty.washington.edu/chudler/introb.html#bb
to be honest there is no average to this.It all really depends on the persons brain size and capacity.
The size of an average 11-year-old girl's brain is approximately 1,200-1,400 cubic centimeters. At this age, the brain is still developing and growing, with significant changes in structure and function occurring during childhood and adolescence.
about 120 to 130 pounds but if ur 135 its not over weight, 145 would b
The average height for a 12 year old is 4'11" or 5'0".
An average nine year old girl should be about 130-160
About 80-95
yes