When it is morning to us, it is evening to them; when it is day-time to us, it is night-time to them; and when it is noon to us, it is midnight to them.
On how much of the earth is it always day?
It is day on one-half of the earth, while on the other half it is night.
The sun seems to move around the earth; does it really do so?
No; it does not move around the earth.
Does the earth move?
Yes; it turns over once every day.
Why does it not seem to us to be moving?
Because we move along with it. If we are on a railroad car, the trees and houses along the road appear to move, and the car to stand still; but the car really moves, while the trees and houses stand still.
In what direction does the earth turn on its axis?