As the Most Basic Element of the game, This is the most interactive.
By drawing some heater on the screen, draw some water and tilt the water to the heater. The water will start boiling into steam.
When you have some water on the screen, drawing fire will boil the water, but it will also extinguish the fire.
Cooler will cool out steam, reverting it into water again.
Water is the shot out of Inflow and off Inflow (tool).
In Real LifeEdit
Water is the most abundent thing on Earth, although Most of it is Saltwater and most of the fresh water is Frozen.
It is a liquid but it can be boiled, or frozen. It is used to extinguish fires, but not for putting out electrical fires.