Is there any basic format for a graphic organizer?

No. It all depends on what you're using the organizer for and how many details for each topic/subtopic you have.

http://www.enchantedlearning.com/graphicorganizers/

Yes, there are several basic formats for graphic organizers, which are visual tools that help organize information and ideas. Although the specific format may vary depending on the purpose, there are a few common types that can be used as a starting point:

1. Venn Diagram: This consists of overlapping circles that are used to compare and contrast two or more ideas, concepts, or objects. The overlapping sections represent the similarities, while the non-overlapping sections represent the differences.

2. Mind Map: This is a diagram that starts with a central idea or topic and branches out into subtopics and related ideas. It helps to explore multiple dimensions and relationships between ideas.

3. Flowchart: This involves a series of connected shapes or boxes that represent the steps or stages of a process, decision-making flow, or sequence of events. Arrows or lines are used to show the connections or direction of the flow.

4. Chart or Table: This consists of rows and columns used to organize and compare data or information. It is particularly useful for organizing facts, statistics, or data sets.

5. Timeline: This is a linear representation of events or chronological sequence. It helps to visualize the order and relationship of historical events, project stages, or any sequential information.

When deciding which format to use, consider the purpose of your graphic organizer and the type of information you want to organize. Additionally, you can modify or combine different formats to suit your specific needs.