Sparkly pictures on your window
The door was shut, as doors should be
Before you went to bed last night;
Yet Jack Frost has got in, you see, And left your window silver white.
He must have waited till you slept;
And not a single word he spoke, But pencilled o’er the panes and crept
Away again before you woke.
From [Jack Frost]{.smallcaps} Gabriel Setoun
On a cold, crisp day in late autumn or winter, you may wake up to find
your windows covered with icy, lacy swirls. They weren’t painted by Jack
Frost, of course. They were made when tiny droplets of water in the air
got so cold they froze on the windowpane.
During the day, the outsides of your windows are warm, both from the
heat inside your house and from the sunshine. But when the sun sets, the
windowpanes grow cool, then cold. The air touching the window grows
cold, too, and all the tiny droplets of water in the air freeze. They
suddenly become crystals of ice, stuck to your windowpane. Then you see
designs like lacy coils, sparkly feathers, and shiny, silvery leaves.
