The document provides examples of using "when" and "while" to describe events happening simultaneously or in a particular order. It shows that "when" is used to refer to a specific point in time when one event occurred, and "while" describes one event happening during the duration of another event. Some examples given are: "When Ali fell down, he was running"; "While she was reading a book, the electricity went off"; and "While they were having a picnic, it started to rain."