Mystery #3Tier 2-3hormones / growing up
Why does your body slowly change as you grow from a child into an adult?
For years you grow a little taller and not much else. Then, somewhere around the age of ten to fourteen, everything shifts: your voice, your shape, your skin, all changing over just a few years. Nobody tells your body to start, yet it starts anyway, right on cue. What flips the switch from child to adult?
Your guess
What do you think sends the signal that it's time for your body to start changing?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.