How bodies work (kid-sized)
Your body is an amazing machine: bones that grow, a heart that never takes a day off, a brain that rebuilds itself while you sleep. Big questions about bodies are normal — ask the grown-ups who love you, never a stranger online.
NASA / Land 1968 · the four moves creative kids make
step 1 · observe
did you know? ★
Every human body has two sex chromosomes — usually XX (girls) or XY (boys). This is set at the moment you're conceived and doesn't change.
Boys and girls have the same number of bones as babies (about 300) and end up with the same number as adults (206).
src: Cleveland Clinic
Puberty usually starts between ages 8–13 for girls and 9–14 for boys — everybody's clock is a little different, and that's normal.
don't believe us — go look ★
These are the real places this comes from: museums, archives, science agencies. Read them, then make up your own mind. Different people can read the same facts and think different things — that's allowed, and worth talking about calmly.
step 2 · imagine
🐕
Vet
Vets treat everything from hamsters to horses.
try it tiny
Watch a bug for 2 minutes. Guess what it needs.
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Flip cards. Learn one true body fact at a time.
step 3 · try
pick everything that feels true →
What's true about our bodies?
Tip: if you pick something "wrong," that's not a fail — it's the most useful click of the day. Mistakes get saved to your Lab as trophies, never as shame.