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Vocab sep mix matter

Year 9 vocab separating mixtures and matter

TermDefinition
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