Guardian of the Light
I am sure that all of you have been told that cold water freezes faster than warm water. The surprising truth about this is that warm water actually freezes faster than cold water. I am sure that a lot of you will argue that less energy has to be transferred to the water but, you forgot to observe all of the details. Warm water freezes faster because of the amount of oxygen in the water. This is one of those cool things that you can learn from your grandfather.