Template:Object info boxGunpowder is the earliest known chemical explosive. It consists of a mixture of sulfur, charcoal, and potassium nitrate.
In Scribblenauts and Super Scribblenauts the gunpowder doesn't have any special behavior. It can't be set on fire, explode or used as a combustive.
From Scribblenauts Unlimited forwards the gunpowder, when set on fire, it will explode. The player can burn the gunpowder by using a match or a flamethrower.