Why is it Dark at Night?
If you take a ball and hold it near a bright light the half of the ball next to the light is shown upon, and the half of the ball away from the light is dark. If you mark a spot on the ball, and then turn the ball round and round like a top, that spot will be shone upon half the time and will be in the dark the other half of the time. We live on a big ball called the earth, which is always spinning round and round, and it is shone upon all the time, day and night, by the bright light called the sun.
The place where we live is like the spot on the ball, and, as the great earth-ball spins, part of the time we are on the side toward the sun and part of the time we are on the side away from the sun. When we are on that side it is dark at night, but while it is our night it is daytime for the people who live on the other side of the ball. However dark it is where we live, the sun is always shining somewhere. If you think of the ball and the light you will understand that, however dark it is where we are, the spinning of the earth will soon carry us round into the light again.
