Chain Reaction

Imagine you're trying to clean your house, but as you tidy one room, you accidentally mess up another, creating a never-ending cycle of cleaning. This situation is similar to a fission reaction, where the splitting of an atomic nucleus releases energy and produces smaller nuclei that trigger further reactions. Just as each room you clean somehow leads to more mess elsewhere, each fission event releases particles that cause additional nuclei to split, perpetuating the cycle.
Practice Version

Chain Reaction: A fission reaction which creates products that continue the same reaction repeatedly. Chain reaction. In science, a chain reaction is a process where the products of a reaction cause more reactions to occur in a continuous cycle.