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Solids, Liquids, Gas


Matter Is anything that has mass and occupies space.
Pysical Change A process in which a substance changes its phyusical appearance but not its chemical composition.
Chemical Change A process in wich a substance undergoes a change in chemical composition.
Pure Substance A single kind of matter that cannot be separated into other kinds of matter by any physical means.
Mixture A physical combination of two or more pure substances in which each substance retains its own chemical identity.
Heterogeneous Mixture A mitxture that contains visibly diferent phases (parts), each of which has different properties.
Homogneous Mixture A mixture that contains only one visibly distinct phase (part), which has uniform properties throughout.
Element A pure substance that cannot be broken down into simpler pure substances by chemical means such as a chemical reaction, and electric current, heat or a beam of light.
Compound A pure substance that can be broken down into two or more simpler pure substances by chemical means.
Atom The smallest particle of an element that can exist and still have the properties of the element.
Molecule a group of two or more atoms that functions as a unit because the atoms are tightly bound together.
Diatomic Molecule A molecule that contains two atoms.
Triatomic Molecule A molecule that contains three atoms.
Homoatomic Molecule A molecule in which all atoms present are of the same kind.
Heteroatomic Molecule A molecule in which two or more kinds of atoms are present.
Solid Is the physical state characterized by a definite sape and a definite volume.
Liquid Is the physical state characterized by an indefinite shape and a definite volume.
Gas Is teh physical state characterized b an indefinite shape and indefinite volume.
Property Is a distinguishing characteristic of a substance that is used in its identification and discription.
Created by: triciawlazlak