Daughter (5): What would happen if the heart stopped?
Me: That’s called a heart attack. You don’t want that.
D: Why not?
M: You need your heart to work.
D: Why?
M: It needs to pump blood.
D: Why?
M: Your body needs to circulate blood.
D: Do your toes need blood?
M: Yes.
D: What is blood made of?
M: Blood cells.
D: What are blood cells made of?
M: Different kinds of molecules.
D: What are molecules made of?
M: Different kinds of atoms.
D: What are atoms made of?
M: Protons, neutrons, and electrons.
D: What are protons made of?
M: Quarks.
D: What are neutrons made of?
M: Quarks.
D: What are electrons made of?
M: Nothing makes them up. They’re elementary.
D: What are quarks made of?
M: Nothing.
D: So blood is made of quarks and electrons. You have to get to the end to find out what it’s made of.
A child’s curiosity and energy can be rejuvenating. Try to feel rejuvenated and have a wonderful day. 🙂
chrismcmullen 
That actually makes a lot of sense to me. Maybe we need more 5-year-old scientists. 🙂
I’m in favor of that. 🙂
We might finally get that cootie vaccine and a cure for the common cold out of that.
No wonder I’m quarky. 🙂
We can have a lot of fun word play with the strange and charm quarks. Too bad truth and beauty died out in favor of top and bottom. 🙂
The younger they are interested the better – will start to use quarks on a regular basis.
There is no word that she’s afraid to use (well, thankfully she learned not to use a few special words). 🙂
Clearly if I had known the write questions to ask at school, I’d have gotten better answers. The world would have opened up! I learnt a lot from that conversation 🙂 You guys should do a TED talk 🙂
That might be fun to try. 🙂