In other parts there are no hills at all, but level land, and quiet little ponds of blue water. There the white water lilies grow and fishes play among the lily stems.
Now, if we look on another side of the ball, we shall see no ponds, but something very dreary. A great plain of sand stretches away on every side. There are no trees, and the sunshine beats down upon the burning sand.
We look again, and we see a great body of water. Many islands are in the sea, and great ships sail upon it.
Look at one more side of this ball as it turns around. Jack Frost must have spent all his longest winter nights here. For see what a palace of ice he has built for himself.
How cold it looks! See the clear, blue ice, almost as blue as the sky. And look at the snow, drifts upon drifts, and the feathery flakes filling the air.
Now, what do you think of this ball, so white and cold, so warm and green, so dreary and rough, as it floats along in the sweet blue air, with the flocks of white clouds about it?
I will tell you one thing more. The wise men have said that this earth on which we live is just such a ball. We shall know more about this when we are older and wiser.