A chain is like a group of friends holding hands in a line. Each friend is a link, and they all stay together by holding hands tightly. If one friend lets go, the line breaks, just like a chain would if a link is broken. Chains can be used to keep things together or to make sure something stays in place.

Think of a chain as a train made of tiny train cars. Each car is a link, and they connect to form a long line. If one car disconnects, the train stops moving smoothly. Chains help things move or stay where they should, just like a train follows its tracks.

Imagine a necklace made of shiny beads. Each bead is a link, and the string holding them together is the chain. If the string breaks, the beads fall apart. Chains keep things connected, just like the string keeps the beads together.

Chains can also be like a puzzle where each piece fits perfectly with the next. If one piece is missing, the whole picture isn’t complete. Chains need all their links to work properly, just like a puzzle needs all its pieces.