Look, they cover all the ground,
Miles of dazzling white around;
But this covering, I am told,
Keeps the earth from frost and cold.

Ah! and I must work alway,
Life's not meant to spend in play;
Every moment's fleeting fast,
And our day will soon be past;
If our work is truly done,
It will last though ages run.

Of what use is rain? Of what use is snow? Of what use is wind?




LESSON XIV.

HOW WATER IS CHANGED TO VAPOR.

What happens when a kettle of water is put on a hot stove?

The water gets hot and boils away.

Where does it go? Is it destroyed?

The water is changed, but it is not destroyed. Coal burns, but we do not
get rid of it altogether. It is changed into gas and smoke and ashes.