KS3 Science · Chemistry
Separating mixtures
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Key words
Pure substance Made of only one substance
Mixture Two or more substances mixed together, not joined
Solute The substance that dissolves
Solvent The liquid that does the dissolving
Solution A solute dissolved in a solvent
Soluble Able to dissolve
Insoluble Not able to dissolve
Saturated solution A solution that can dissolve no more solute
Solubility How much solute will dissolve in a set amount of solvent
Suspension Bits of insoluble solid hanging in a liquid
Filtration Separates an insoluble solid from a liquid
Residue The solid left in the filter paper
Filtrate The liquid that passes through the filter paper
Evaporation A liquid turning into a gas
Crystallisation Crystals forming from a solution
Distillation Evaporating a liquid and then condensing it
Condenser Cools a gas so that it turns back into a liquid
Chromatography Separates dissolved coloured substances