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Chemistry is a branch of science that studies what everything is made of and how it works.
sourceChemistry is the scientific study of the properties what's in it and behaviour how it changes of matter.
It is a physical science within the natural sciences that studies the chemical elements * that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behaviour and the changes they undergo during reactions with other substances.
*A chemical element is a chemical substance that cannot be broken down into other substances by chemical reactions.
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Many people when they think of chemistry think of glass bottles containing liquids as seen in the picture, and test tubes.
https://en.wikipedia.org/wiki/Chemistry
https://astronomyscienceforchildren.blogspot.com/p/chemistry.html
In physics, a state of matter is one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma. source
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