645am and I wake up. As usual, in less than 5 minutes, I hear Sean coming towards me. He always knows when I've woken up, I dunno how.
This morning, after hugging me, he said, "I'm cold. You're hot." Woohooo, I'm HOT!, he means warm of course.
Me: Am I?
Sean: Yes, you are the Radiative zone of the sun. I'm the earth. Guess where my equator is?
I point to his bellybutton: Here.
Sean: No...it has to be a line.
Me: Okay, your waist then.
Sean: Right. Guess where my core is.
Me: Your stomach?
Sean: No! My heart.
He continues: Daddy is the Convective zone of the sun.
Me: What's that?
Sean: It's a zone of the sun. It's after the radiative zone if you count the layers of the sun starting from the core. Photosphere is the surface of the sun. Flares from the photosphere travel at hmmmm, 400km a second. The Chromosphere is part of the sun's atmosphere. And the whole atmosphere is called the Corona.
Me: If you're cold, shouldn't you be Pluto instead of Earth?
Sean: There's winter on Earth, and there's also the South and North Poles.
I then turned on the heater to warm up cold Earth while he runs off to read Horrible Science: Space, Stars and Slimy Aliens where this information is apparently from.
More details from google:
A simple illustration
A more detailed one
Links here, here, here and here.