Think of it like this:
* Main Topic: A large umbrella covering a wide range of ideas.
* Subtopics: Smaller umbrellas that fit underneath the main umbrella, each focusing on a particular aspect of the main topic.
Example:
* Main Topic: History of the United States
* Subtopics: Colonial Era, American Revolution, Civil War, Industrial Revolution, Civil Rights Movement
Here are some other ways to think about subtopics:
* Branches of a tree: The main topic is the trunk, and the subtopics are the branches.
* Chapters of a book: The main topic is the book's title, and the subtopics are the individual chapters.
* Sections of a website: The main topic is the website's purpose, and the subtopics are the various pages or sections.
In essence, subtopics help to break down complex information into manageable chunks, making it easier to understand and learn.