Think of a cluster like a group of friends. Just like how friends hang out together because they like the same things, a cluster is when things are close together because they have something in common. For example, if you have a bunch of colorful candies and you put all the red ones in one pile and all the blue ones in another, each pile is a cluster of candies that are the same color.
Another way to think about a cluster is like stars in the sky. If you look up at the night sky, you might see a bunch of stars that are really close to each other. Those stars are in a cluster. They look like they belong together because they’re so close, just like a family of stars!
Imagine a cluster as a garden where flowers of the same color grow close together. The red roses are in one corner, the yellow sunflowers are in another, and the purple violets are somewhere else. Each group of flowers is a cluster because they stay with their color buddies. Clusters help us see patterns in things, just like how you can see where each type of flower is in the garden.