Natural Sciences

Natural sciences form the basis for the applied sciences. Together, the natural and applied sciences are distinguished from the social sciences on the one hand, and from the humanities and the arts on the other. Mathematics, statistics and computer science are not natural sciences, but provide many tools and frameworks used within the natural sciences.

Astronomy is the science of celestial objects (e.g., stars, planets, comets, and galaxies) and phenomena that originate outside the Earth's atmosphere (e.g., auroras and cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology,and motion of celestial objects, as well as the formation and development of the universe.  Astronomy - Wikipedia

 Biology is the branch of science dealing with the study of living organisms. It is concerned with the characteristics, classification, and behaviors of organisms, how species come into existence, and the interactions they have with each other and with the natural environment. Biology - Wikipedia

Chemistry is the science of matter at the atomic to molecular scale, dealing primarily with collections of atoms, such as molecules, crystals, and metals. Chemistry deals with the composition and statistical properties of such structures, as well as their transformations and interactions to become materials encountered in everyday life. Chemistry - Wikipedia

Physics is the science concerned with the discovery and understanding of the fundamental laws which govern matter, energy, space and time. Physics is a study of the inorganic, physical world, as opposed to the organic world of biology and physiology.  Chemistry concerning the electro-chemical interactions of substances overlaps with physics.  Physics - Wikipedia

Earth Sciences is an all-embracing term for the sciences related to the planet Earth. There are both reductionist and holistic approaches to Earth science. The major historic disciplines use physics, geology, mathematics, chemistry, and biology to build a quantitative understanding of the principal areas or spheres of the Earth system. Earth science - Wikipedia