Why can adults hold their breath longer than children?

Question

I am doing a science expirement in my 4th grade class. Thanks!

Answer 1

Children have a higher heart rate and respiration rate than adults and children's lungs aren't fully developed so it stands to reason that they can't hold their breath as long as adults can.

Answer 2

Who says they can?
My bet is that a child can hold their breath longer than the "average" adult by far.
There are many adults out there that just don't breathe anywhere near their designed capacity.
Taking into account the volume to size ratio, a child should easily hold their breath longer. (Pro-rata)
It's only as they get older that bad habits (smoking, drugs poor diet) and poor posture limits the breathing capacity of the adult lungs.

Answer 3

Because the adult lung capacity is much larger than a childs, therefore can inhale more deeply and retain more air

Answer 4

Slower heart rate and metabolism. This makes for less oxygen consumption. Also adults have mastered controlling they're bodies so they can restrict movement and thought better which uses oxygen.

Answer 5

their lungs are larger!!!
youre only young and you can spell alot better than some of the people on here!!
xx

Answer 6

Adults have larger lungs.

You're only in 4th grade.
I'm suprised you can spell.

Answer 7

Yeah their lungs are much larger.

Think man! Think about it first!

But you're young, I give you leeway on that.

Answer 8

Simply becaue they have large lungs and have more self control

Answer 9

Because they have large lunges.

Answer 10

um, bigger body, bigger lung capacity.