In science, a process is any method (or event) that results in a transformation in a physical or biological object, a substance or an organism. Some example of such processes are: activation, combustion, crystallization, centrifugation, diffraction, dispersion, distillation, electrolysis, electrophoresis, emulsification, evaporation, hydrolysis, nuclear fission, nuclear fusion, oxidation, phosphorescence, pyrolysis, reduction, reflection, refraction, scattering, sedimentation, sublimation are a few examples of common processes in physical sciences. Similarly, birth, cell division, fermentation, fertilization, germination, growth, geotropism, heliotropism, hybridization, metamorphosis, photosynthesis, transpiration are a few examples of biological processess. The scope of this article is limited to the empirical sciences. ... In chemistry a chemical transformation shows the conversion of a substrate to a product omitting the reagents and catalysts or underlying reaction mechanism as opposed to a chemical reaction. ... WordNet gives four main senses for the English noun object: a physical entity; something that is within the grasp of the senses; an aim, target or objective — see Object (task); a grammatical Object — either a direct object or an indirect object the focus of cognitions or feelings. ... Look up Substance in Wiktionary, the free dictionary Substance may refer to: Substance theory: in philosophy, substance is that element of an object without which it would not exist, or what exists only by itself (causa sui) Chemical substance: in chemistry, a substance is an element, compound with uniform composition. ... In biology and ecology, an organism (in Greek organon = instrument) is a complex adaptive system of organs that influence each other in such a way that they function as a more or less stable whole and have properties of life. ... Activation Activation in science generally refers to prepare some object for a process. ... Combustion or burning is a chemical process, an exothermic reaction between a substance (the fuel) and a gas (the oxidizer), usually O2, to release heat. ... Crystal (disambiguation) Insulin crystals A crystal is a solid in which the constituent atoms, molecules, or ions are packed in a regularly ordered, repeating pattern extending in all three spatial dimensions. ... Centrifugation is a process that involves the use of the centrifugal force for the separation of mixtures. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Dispersion can mean any of several things: A phenomenon that causes the separation of a wave into components of varying frequency. ... Strathisla whisky distillery in Keith, Scotland Distillation is a method of separation of substances based on differences in their vapor pressures. ... In chemistry and manufacturing, electrolysis is a method of separating bonded elements and compounds by passing an electric current through them. ... Electrophoresis is the movement of an electrically charged substance under the influence of an electric field. ... An emulsion is a mixture of two immiscible substances. ... Evaporation is one of the two forms of vaporization. ... Hydrolysis is a chemical process in which a molecule is split into two parts by the addition of a molecule of water. ... An induced nuclear fission event. ... The deuterium-tritium (D-T) fusion reaction is considered the most promising for producing fusion power. ... The most fundamental reactions in chemistry are the redox processes. ... Phosphorescent powder under visible light, ultraviolet light, and total darkness. ... Simple sketch of pyrolysis chemistry Pyrolysis usually means the chemical decomposition of organic materials by heating in the absence of oxygen or any other reagents, except possibly steam. ... Reduction or reducing has several meanings: In mathematics, reduction is the process of manipulating a series of equations or matrices into a desired simpler format. ... Spheres reflecting the floor and each other. ... The straw seems to be broken, due to refraction of light as it emerges into the air. ... In particle physics, scattering is a class of phenomena by which particles are deflected by collisions with other particles. ... Sedimentation describes the motion of particles in solutions or suspensions in response to an external force such as gravity, centrifugal force or electric force. ... Sublimation has three separate meanings: In physics, sublimation is the change from solid to gas; gas to solid without passing the liquid state is called deposition. ... Childbirth (also called labo(u)r, birth, partus or parturition) is the culmination of a human pregnancy with the emergence of a newborn infant from its mothers uterus. ... This article or section does not cite its references or sources. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Categories: Biology stubs ... Sunflower seedlings, just three days after germination Germination is the process in botany where growth emerges from a resting stage. ... Growth can refer to: Auxology Bacterial growth Cell growth Economic growth For financial growth due to simple interest or compound interest see Interest Exponential growth Fungal growth Logistic growth Growth hormone Personal growth Population growth Tumours can sometimes be referred to as a growth This is a disambiguation page: a... // Gravitropism (or geotropism) is a turning or growth movement by a plant in response to gravity. ... Phototropia is a botanical term for an organisms movement (tropism) in response to light. ... In genetics, hybridisation is the process of mixing different species or varieties of organisms. ... Metamorphosis is a process in biology by which an individual physically develops after birth or hatching, and involves significant change in form as well as growth and differentiation. ... Leaf. ... Transpiration is a process caused by the evaporation of water from leaves of plants and its corresponding uptake from roots in the soil. ...

See also

• Stochastic process
• Process group