1. Natural Sciences: This branch deals with the study of the natural world, including:

* Physical Sciences: Physics, Chemistry, Astronomy, Geology

* Life Sciences (Biology): Biology, Zoology, Botany, Ecology

* Earth Sciences: Meteorology, Oceanography, Geology

2. Social Sciences: This branch focuses on human behavior and society, including:

* Psychology: The study of the mind and behavior

* Sociology: The study of human societies

* Anthropology: The study of human origins and cultures

* Economics: The study of production, distribution, and consumption of goods and services

* Political Science: The study of power and governance

3. Formal Sciences: This branch deals with abstract systems and concepts, including:

* Mathematics: The study of numbers, shapes, and structures

* Logic: The study of valid reasoning and argumentation

* Computer Science: The study of computation, algorithms, and information

It's important to note that these divisions are not always clear-cut, and there is often significant overlap between them. For example, many scientific disciplines draw on both natural and social science methodologies.