Break me into two and I am but a form of water But when I am one, the world demands me

I hold things together, yet I’m gone in a snap, I fasten the pages, I shorten the gap. I capture a moment, then cut it away, Too small for a film, too long for a frame.

A wonderful spectacle displayed every night for everyone to glance with delight, come and view us afar but dont forget to wink bank at the stars

Teachers love me Doctors fear me Snakes of myth might slither near me Once a princess’s surprise I’m beheld by many eyes

When you need to rest or snooze, my four legs are yours to use. Potatoes spend too much time on me when they should be out and running free. Two notes make up my name, it's true, though I will never sing to you.