How does pennywise die?

Answer:
He dies first when the lucky seven are kids and he gets sprayed with battery acid and shot in the head with a ball of silver, he dies in his true form in the future when they are adults and the girl shoots IT with another silver chunk.
First answer by SuperMario2000. Last edit by SuperMario2000. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].