Chemistry

Chemistry, The science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

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Usually considered in the context of the applied arts, engineering, architecture, and other such creative endeavours, "design" is used as both a noun and a verb. "Design" as a verb refers to the process of originating and developing a plan for a new object (machine, building, product, etc.). As a noun, "design" is used both for the final plan or proposal (a drawing, model, or other description), or the result of implementing that plan or proposal (the object produced).

Chemistry (derived from alchemy) is the science of matter at or near the atomic scale. In this pursuit chemistry deals with the properties of such matter, the tranformations of matter and the interactions of matter with other matter and with energy. Chemistry primarily studies atoms and collections of atoms such as molecules, crystals or metals that make up ordinary matter. According to modern chemistry it is the structure of matter at the atomic scale that is determinant of the nature of any given matter.

Alchemy is an early protoscientific and philosophical discipline combining elements of chemistry, metallurgy, physics, medicine, astrology, semiotics, mysticism, spiritualism, and art. Alchemy has been practiced in ancient Egypt, India, and China, in Classical Greece and Rome, in the Islamic empire, and then in Europe up to the 19th century — in a complex network of schools and philosophical systems spanning at least 2500 years.