| A | B |
|---|
| physical property | properties which describe how matter looks, feels, smells,etc. |
| chemical property | a property that describes how one substance reacts with another |
| physical change | a change that affects matter's physical properties only |
| chemical change | a reaction in which new materials are formed |
| element | matter made up of one kind of atom |
| metal | an element that conducts electricity or heat |
| conductor | a material which conducts heat and electricity |
| nonmetal | an element that conducts electricity or heat |
| atom | the smallest part of an element |
| nucleus | the center of the atom |
| protons | a positively charged atomic particle |
| electrons | negatively-charged atomic particles orbiting the nucleus in energy levels |
| neutrons | an atomic particle which has no charge, found in the nucleus |
| symbols | a letter or letters used to represent and element |
| periodic table | a system used to organize the elements into periods and groups |
| formula | chemical shorthand of symbols and subscripts representing a compound |
| solution | a mixture made by dissolving one substance in another |
| solute | a substance that dissolves in a solvent |
| solvent | a substance that dissolves a solute |
| dilute | a solution containing a small amount of solute(dissolved material) |
| concentrated | a solution containing a large amount of solute(dissolved material) |
| suspension | a mixture that is not dissolved |
