Have you made a hole in sand?

You drop a ball.

The sand moves away.

A small, round hole is there.

Now, look up at the moon.

A space rock hit its ground.

It made a new crater.

A crater is a big, round hole.

This crater is very large.

It is as wide as two soccer fields. (science.nasa.gov)

But here is the surprise.

People found it after it formed.

New pictures showed the change.

A quiet night can hide a story.

One small rock can leave a giant mark.