| A | B |
|---|
| pure | a substance that contains only 1 type of particle; it has no contaminants |
| proportion | a fixed amount |
| mixture | a composition of 2 or more substances that are not chemically combined with each other and are capable of being separated by physical methods |
| mineral water | water with dissolved mineral salts or gases |
| filtration | technique used to separate mixtures of substances when 1 substance is insoluble in liquid |
| distillation | process of separating mixtures containing a liquid and a solid by boiling, condensing and collecting the liquid, thereby leaving the solid behind |
| fractional distillation | the process of separating a mixture that has more than 1 substance |
| crystallization (Am) / crystallisation (Br) | the formation of crystals |
| chromatography | the technique used to separate different solutes in a solution e.g. for separating out the dyes found in inks |
| condensation | the process by which a gas turns into a liquid when it is cooled |
| composition | the way in which distinct parts or elements are combined to form a whole |
