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substances and mixtures

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. Elements can be different or the same. Example: O + O = O2
compound A molecule that has two or more different elements bonded together. Example: H + O = H2O
heterogeneous mixture Parts do not combine. Each keeps its own properties. Can be separated. Example: sand in water.
homogeneous mixture Uniform distribution. Example: sugar in water.
solution Groups of molecules that are mixed in a completely even distribution. A solute dissolved in a solvent.
solute The substance to be dissolved. Example: sugar.
solvent The one doing the dissolving. Water is a universal one.
mixture No chemical change. Each keeps its own properties. Can be separated.
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
bonded Atoms are held together by a force of attraction
element A pure substance that is the building block of all matter
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
Created by: abbybrown25



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