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Atoms and molecules

TermDefinition
MIXTURE Two or more elements that are combined in a way that chemical reactions do not occur; can be taken apart.
PURE SUBSTANCE A substance made from a single type of atom or one type of molecule; can be a compound or a single element; Examples: diamonds, salt, gold
ELEMENT A pure substance that is the building block of all matter.
COMPOUND Two or more elements that are chemically combined and whose properties are different from each of the elements in it.
BONDED Atoms are held together by a force of attraction
SOLUTE A substance that is dissolved in another substance
SOLVENT The liquid in which a solute is dissolved
SOLUTION Substances in a mixture are evenly distributed; all parts are the same
HOMOGENEOUS MIXTURE A mixture that has the same combination of components (parts) throughout the entire mixture; Examples: sugar in water
HETEROGENEOUS MIXTURE A mixture that is not the same throughout; can be separated; Examples: sand in water
MATTER Anything that has a mass and a volume
ATOMS The building blocks of matter; made up of protons, electrons, and neutrons
MOLECULES Two or more atoms are joined together chemically; the elements can be different or the same
FILTRATION Process of separating a mixture by using a funnel and filter paper to separate a solid from a liquid
DISTILLATION Process in which the parts of a substance or liquid mixture are separated by heating it to a certain temperature and then condensing the resulting vapors
EVAPORATION A method of separating a mixture where the liquid turns into a gas and the solid residue is left behind
MAGNETISM A method of separating a mixture by removing metals from non-metal substances
SIFTING A method of separating a mixture that uses a screen-like device or mesh device to separate larger objects from smaller objects
Created by: katelynn p