I was named for my color - take my first four letters and you'll see. Yet in my full form, I'm a product of deadly chemistry.

I can make the first move, but I cannot lead the way. People use me to part with their own.

My first half makes you grimace at first bite, my second shines bright in the dead of night. Together, I am an actor's favorite sight.

I am hoarded in panic, yet I vanish in haste, I stick by your side, in your darkest hour. I ease your toil when nature won’t wait, Then I let you leave in a fresher state.

I am the opposite of potential I measure energy in motion In art I make the still things sway My root is Greek, it means to move