The Rock Cycle

You know that exists a water cycle, but do you know that there is a rock cycle too?
 Is more complex than the water cycle but you couldn´t imagine the long life that a rock has.

Watch the following video which shows a song about the rock cycle, then write in your notebook a diagram which shows the way that a rock is formed and broken in a perpetual cycle. And the most important... LEARN IT! because the next day we are going to sing it in class!!

Rock cycle song