My kid's science project was supposed to demonstrate states of matter. He put ice in a bowl, water in a bowl, and steam over a pot. He presented it to the class. He said, 'The ice is solid. The water is liquid. The steam is gas.' The teacher asked, 'And what does this demonstrate about the world around us?' He said, 'It demonstrates that water is the most indecisive substance in the known universe. It was solid, now it's liquid, now it's gas. It can't commit to a form. It keeps changing its mind. It was a cube, now it's a puddle, now it's a cloud. I think water has identity issues. I think water doesn't know what it is.'