What are the 15 branches of science?

In this brief guide we are going to answer the question ‘’What are the 15 branches of science?’’ We will highlight the main branches of science, what each one studies and we will explain the importance of the role of science in humanity.

What are the 15 branches of science?

  • Biology
  • Physics
  • Chemistry
  • Ecology
  • Math
  • Economy
  • Anatomy
  • Statistics
  • Logic
  • Philosophy
  • Laws
  • Psychology
  • Geography
  • Anthropology
  • Sociology

It’s obvious to say it, but we think it’s important to emphasize it once again: at present moment, human knowledge is very vast and there’s a great diversity of scientific disciplines or fields of knowledge, according to the object of study that they take into account. The reality is made up of many elements – some of which we can perceive with the senses and others not – and to analyze it in detail, it has been necessary to classify it into branches or sectors: these are the branches of Science.

Branches of Human Science


This is the science of thought par excellence. It represents the way in which the human mind apprehends the reality that surrounds it, but also a way through which it manages to conceive itself in its condition.

Philosophy, among other questions, asks about the existence of God, the origin of the Universe, the aesthetic perceptions of art, the ontology of the material things that surround us, self-knowledge, etc.


You don’t have to be a genius to imagine what this discipline consists of; however, perhaps you did not know that it constitutes one of the current branches of Science. Well, all that field of knowledge that has a specific study and analysis methodology can be considered a science.

The Law is fundamental to regulating the life in the society of all the people who inhabit this world. It’s a set of legal orders that provide rules for doing business, getting married, crossing from one country to another, working, paying taxes, enjoying the protection of the State and much more.


Perhaps until a few years ago, Psychology was not considered one of the branches of science; however, it’s a solid disciplinary field with its own analysis procedures and a great capacity to verify the results. The experimental subjects of Psychology – of course – are people and their minds.

Psychology takes into account thoughts, feelings, emotions, intuitions, personalities, traumas, education and all those internal traits that make up the way of being individuals. It’s a great way to get to know yourself and others better.


Perhaps you thought that Geography consisted only of studying the relief of the land and the constitution of the sea (after all, that is what they teach in school), but no: it’s much more than that. This discipline analyzes all the characteristics and accidents of our planet as such, and is thus divided into branches such as Cosmology, Biogeography, Hydrography, Climatology, Geology and many other areas of interest.

It takes into account human and natural life, atmospheric, climatic and spatial phenomena, certain social, historical and cultural movements… its field of study is truly vast.


The history of Man through the centuries, his way of living and interacting in a society, the historical and cultural changes that have affected his way of being or vice versa (the influence of the human being on his environment) are the object of study of Anthropology.

This is one of the most interesting and challenging branches of Human Science. As you may have guessed, it maintains deep connections with other disciplines, due to its comprehensive and general nature. Anthropology is linked to Philosophy, Psychology and other fields of current knowledge.


Surely you are not unaware that the human being is a social entity; thus, all the relationships that are configured by life in society, from the most intimate and personal to the most general and public, are the object of study in Sociology.

Thanks to the contributions of this discipline, man can better understand the historical and cultural changes that occur within a society, as well as the origin of the various social movements in his country and in the world.

Branches of Natural or Exact Science


It’s probably not a mystery to you: the prefix “bio” means “life”, and thus, Biology is the science that studies – in a more comprehensive way – life on planet Earth. Animals, plants, proto-cellular microorganisms, biomes and even man as a biologically constituted being are objects of study in this area.

Among the branches of Science that exist, this is one of the first to appear in the popular imagination: maps, microscopes and laboratories are part of the research methods of Biology.


Life on planet Earth, living beings and objects that we see are regulated by natural laws studied by Physics. Phenomena such as speed, temperature, movement, heat, light are those on which the physical sciences are based to understand the world around us.

At the same time, thanks to the discovery of certain principles of Physics, it has been possible to design new electronic, medical, transport devices, etc .; First, it was learned how the world worked and what were the phenomena had to be mastered in order to transfer them to artificial systems or machines.


We are facing one of the most exact branches of Science that exist. Chemistry deals with studying the composition of matter at the molecular, atomic and chemical levels. It seeks to understand the constitution of the different natural and artificial elements that surround us, through experimentation, observation and scientific analysis.

The advances in Chemistry have been transferred to many fields of human activity. Thanks to their contributions, it has been possible to develop fuels, medicines, vaccines, cosmetics, industrialized foods and a great variety of consumer goods that we use today.


If you are interested in caring for the environment and the natural processes carried out by our planet to maintain the balance of its biomes seem interesting to you, this science is for you. Ecology consists of the study of life on earth from an integral point of view, taking into account the relationships established by all living kingdoms (plants, animals, man) among themselves to guarantee survival.

Ecology considers the mode of organization of the different species, tries to understand the causes of their migrations and extinction, studies measures to protect the different ecosystems that are part of our world and a long etcetera.


Perhaps you did not know that Mathematics is counted among the branches of Science. Well, that’s right: they consist of a rigorous discipline, with its own methods of calculation, analysis and obtaining information and results. This field of knowledge includes numerous derivations such as Arithmetic, Trigonometry and Algebra, to give just a few well-known examples.

If you like hard science and you have a facility for calculations, you cannot miss our post on the various branches of Mathematics. You will be surprised to discover the large number of areas to which this science can be applied.


According to some experts on the subject, this discipline constitutes one of the current branches of Medicine; However, given its great importance, we have found it pertinent to treat it separately. From this link, you will be able to know all the branches of Anatomy that today are taken into account in medical, academic and work areas.

Anatomy, in a general way, takes into account the physical constitution of the human body (and also of other living beings), understanding it as a complex network of systems and devices.


Everything that has to do with finances, business administration, capital management, accounting … in short, everything related to the “vile metal” (it’s none other than money) is part of the Economy.

It’s a fundamental discipline to understand how finances work within the National State as well as internationally, and even in the daily life of each person. Through the instruments of the Economy (analysis of inflation, capital, interest, rates, country risk, etc.), we can measure the economic reality at a micro or macro level.


If there is any science that is capable of anticipating results and making predictions on all kinds of situations, it’s Statistics. Its measuring instruments allow obtaining constants of phenomena over time and therefore it’s capable of predicting how a certain event is going to develop or end.

Statistics is one of the most exact branches of Science, as it works with percentages, calculations, numbers, probabilities; However, it constitutes much more than this, so we invite you to know our article on the different branches of Statistics.


Logic is a formal science with a clear origin in philosophy in which, based on valid laws or principles (which, as a formal science, do not have to be demonstrated or can be refuted), it allows determining whether human thought is valid. or not, that is, if it follows the rules of reason or, as its name suggests, logic.

For example, if we know that all the inhabitants of France are French and that Paris is a city in France, we can confirm that a person born in Paris is French. It may seem very logical, but that is precisely the idea.


Science is universal in nature, its influence spreads to all fields of society, from the development itself at the technological level, to the problems it encompasses such as medicine and genetics.

Scientific research addresses very important issues at the social level. A clear example is the human genome project, as well as the great topics of debate worldwide such as nuclear weapons, euthanasia, cloning and the use of stem cells.

In this brief guide, we answered the question ‘’What are the 15 branches of science?’’ We highlighted the main branches of science, what each one studies and we explained the importance of the role of science in humanity.

If you have any questions let us know!


Peck, H. T., Peabody, S. H., & Richardson, C. F. (1897). The International cyclopedia, A compendium of human knowledge.

“Rules for the study of natural philosophy”, Newton 1999, pp 794-6, libro 3, The System of the World.