branches of science

Now there are innumerable branches of science. The three main subdivisions are
Physical sciences
Earth Sciences
Life sciences

Physical sciences are the sciences that study about non-living matter.

Chemistry: It deals with the study of matter and its association with energy. Now chemistry has several other subcategories like organic chemistry, inorganic chemistry, nuclear chemistry, biochemistry etc.

Physics: This is basically a natural science and it deals with the study of energy and force.

Astronomy: The study of the universe beyond the Earth's atmosphere.

Earth Sciences:
Earth sciences are sciences that deal with the scientific study of earth. Some of the subjects that earth sciences comprise of are: geology, paleontology, meteorology, seismology, geomorphology etc.

Geology: The science of the origin, history, and structure of the Earth, and the physical, chemical, and biological changes that it has experienced.

Oceanography: The exploration and study of the ocean.

Paleontology: The science of the forms of life that existed in prehistoric or geologic periods.
Meteorology: The science that deals with the atmosphere and its phenomena, such as weather and climate.

Life sciences are basically the branches of science that study the living organisms.

Biology: This branch of science deals with the study of the living creatures. It encompasses all the various associated aspects like the structure and function of the various organs, morphology, physiology, taxonomy etc.

Botany and Zoology: These two branches of science deal with the study of plants and animals respectively. Both the subjects focus on the form and structure of their respective species.

Ecology: It is the branch of science that studies about the relationship of living organisms with each other and their interaction with their surroundings.

Genetics: It deals with the genetic makeup of the living organisms.