If you were asked, you would say that the earth is a great round ball, and that it hangs up in the sky without anybody holding it up!
You cannot explain how that is, and you find it very difficult to understand how it can be.
Perhaps you wonder who made the earth? And how did it get hung up in the sky, and who keeps it there?
So I am going to tell you about it.
A very, very long time ago, a great deal longer ago than you or I can count, for the Bible tells us that it was "In the beginning," God made the heaven and the earth.
The earth on which we live now, where there are trees and beautiful flowers, and horses and cows, as well as men and women and children, was quite empty then. It was always dark there in those days, and all the ground was covered with water!
You can think how desolate it must have been: nothing to be seen but mist and darkness!
But God had not forgotten this earth of ours.
And we read another thing in the Bible about "In the beginning," and that is, that Jesus the Son of God was "in the beginning with God."
That is such a comforting thought! Before our world was prepared for us to live on, Jesus was with God in Heaven!