BRANCHES OF SCIENCE

There are three main branches of science: physical science, Earth science, and life science. Physical science is the study of inanimate natural objects and the laws that govern them. It includes physics, chemistry and astronomy. ... The life sciences include biology, botany, zoology, ecology, genetics and medicine.

Physical science is the study of inanimate natural objects and the laws that govern them. It includes physics, chemistry, and astronomy. In physics, we try to break down the whole universe into a set of fundamental, mathematical laws that explain the smallest things in the universe and the largest. In chemistry, we study the composition, structure, changes and properties of matter: focusing on the scale of chemical bonds and reactions. And in astronomy, we study celestial objects, including the origin of the planet on which we live.

Earth science is the study of the Earth and the physical components that make it up: the constitution of the atmosphere, the seas, the land, and how those things are tied together. It includes geology, oceanography, meteorology and paleontology. Paleontology, the study of life that lived in prehistoric and geologic periods, has some overlap with the life sciences. And other parts of Earth science have a lot of overlap with physical science.