1. Natural Sciences: This branch focuses on the study of the natural world. It is further divided into various disciplines like:

* Biology: The study of living organisms.

* Chemistry: The study of matter and its properties.

* Physics: The study of matter, energy, and their interactions.

* Astronomy: The study of celestial objects and phenomena.

* Geology: The study of the Earth's composition, structure, and history.

* Meteorology: The study of weather and climate.

2. Social Sciences: This branch focuses on the study of human society and its interactions. It includes:

* Psychology: The study of the mind and behavior.

* Sociology: The study of social structures and relationships.

* Anthropology: The study of human cultures and societies.

* Economics: The study of how people make choices in the face of scarcity.

* Political science: The study of government and political processes.

* History: The study of past events.

3. Formal Sciences: This branch deals with abstract systems and structures. It includes:

* Mathematics: The study of numbers, quantities, and shapes.

* Logic: The study of valid reasoning and argumentation.

* Computer science: The study of computers and information systems.

* Statistics: The study of collecting, analyzing, and interpreting data.

It's important to note that these categories are not always mutually exclusive. Some areas of science may overlap or be considered part of more than one branch. For example, biophysics is a field that combines elements of biology and physics.