I've also always made a point of saying, "When the earth faces the sun" or "turns toward the sun" or "the earth has turned away from the sun" - rather than referring to the sun doing the movement.
I've just always wanted to be very accurate with my speech.
So one day, my just turned 6 year old son, comes to me a little while after some now-forgotten incident that prompted me to say, "It's not like it's the end of the world!" and asks, "What if it is the end of the world? It will stop turning! What will happen then!?" He was curious and thinking - now at the elementary age (second plane of development) of not just accepting everything on factual statement, but wanted to understand WHY and WHAT IF and HOW?
So, out of order from all elementary geography presentations, I said, "Ah! I have a chart for you!" This was his first official chart presentation, though he'd seen me painting them previous to this time.
We talked about it a bit. "What do you see here?"
"If this is the earth, where is this side facing?" (pointing to the flames)
- How do those flames feel? (hot) And where is the heat coming from? (the sun)
- I see something else! (icicles!) How do those icicles feel? (cold! because the sun can't give that side of the earth any heat!)
- I wonder if life could exist on this earth if it didn't turn and have times of heat and times of cold? (his response: I wouldn't want to live THERE!)