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Vocab sep mix matter
Year 9 vocab separating mixtures and matter
| Term | Definition |
|---|---|
| apparatus | Selected scientific equipment used in an experiment. |
| chromatography | A technique used to separate two or more coloured liquids. |
| concentrated | A solution that contains more solute than solvent. |
| condensation | Gas particles lose energy, slow down and turn into a liquid. |
| conduction | When heat energy is transferred through a substance by passing from one particle to the next. |
| contraction | When a substance takes up less space, because its particles have moved closer together. This happens when a substance is cooled. |
| convection | When heat energy is transferred by the movement of a heated (less dense) liquid or gas up through a more dense liquid or gas. This causes currents which transfer heat energy through the substance. |
| density | How tightly packed together the particles are in a substance. |
| diffusion | When particles in a liquid or gas move from where they have a high concentration to where they have a low concentration |
| dilute | A solution that contains more solvent than solute. |
| dissolve | When solid particles separate and mix in with the liquid. |
| distillation | A technique used to separate a solute from a solvent due to different boiling points. |
| evaporation | Liquid particles have enough energy to change into a gas. |
| expansion | When a substance takes up more space, because its particles have moved further apart. This happens when a substance is heated. |
| filtrate | The liquid that moves through the filter paper and is collected in a beaker. |
| filtration | The technique used to separate an insoluble solid from a liquid. |
| gas | A type of matter in which the particles are far apart. It will fill (or escape) its container. |
| insoluble | A substance that does not dissolve in the solvent. |
| liquid | A type of matter in which the particles can slide past each other. It can be poured and will take the shape of the bottom of its container. |
| matter | A substance that occupies space and has mass. |
| melting | Solid particles have enough energy to move apart, flow and form a liquid. |
| mixture | A mixture is made up from different substances that are not chemically joined together. |
| particles | The very small parts which make up a substance. The movement of these parts and distance between them is what makes the substance a solid, liquid or gas. |
| residue | The substance that is caught in the filter paper. |
| solid | A type of matter in which the particles are packed tightly together. It cannot be poured, and does not take on the shape of its container. |
| solidifying | Changing from a liquid into a solid. |
| soluble | A substance that dissolves in the solvent. |
| solute | The substance to be dissolved. |
| solution | The resulting mixture of solute in solvent. |
| solvent | The liquid that dissolves the solute, usually water. |
| sublimation | The direct change from a solid into a gas. |
Created by:
marjaferreira
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