1. Natural Sciences: These deal with the natural world. They are further divided into:

* Physical Sciences: Focus on non-living matter and energy, including:

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

* Chemistry: The study of the composition, structure, properties, and reactions of matter.

* Astronomy: The study of celestial objects and phenomena.

* Earth Sciences: The study of the Earth, including geology, meteorology, and oceanography.

* Life Sciences (Biology): Focus on living organisms, including:

* Botany: The study of plants.

* Zoology: The study of animals.

* Ecology: The study of interactions between organisms and their environment.

* Microbiology: The study of microorganisms.

2. Social Sciences: These deal with human behavior and society. They include:

* Anthropology: The study of human societies and cultures.

* Psychology: The study of the mind and behavior.

* Sociology: The study of social groups and their interactions.

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

* Political Science: The study of government and political systems.

* History: The study of the past.

3. Formal Sciences: These deal with abstract systems of thought and knowledge. They include:

* Mathematics: The study of numbers, patterns, and relationships.

* Logic: The study of valid reasoning.

* Computer Science: The study of computation and information processing.

* Statistics: The study of data collection, analysis, and interpretation.

It's important to note that these divisions are not always clear-cut. There are many areas of science that overlap between these categories. For example, biophysics combines aspects of biology and physics.