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States of Matter

Solid A state in which a substance has definite volume and shape
Liquid A state in which a substance has a definite volume but no fixed shape
Gas A state with no definite volume or shape
Elements A substance which cannot be split into a simpler substance
Mixtures A blend of two or more elements / compounds which are not chemically combined
Compounds A combination of two or more elements bonded together in some way
Physical changes A change in physical property (state), which can be undone
Chemical changes A change due to a reaction, makes a new substance and cannot be undone
Melting Changing from solid to liquid
Freezing Changing from liquid to solid
Boiling Changing a liquid to a gas / vapour
Evaporating Changing from liquid to gas
Condensing Change from gas to liquid
Sublimation Change from solid to gas
Dissolving Mixing a solid into a liquid with particles too small to see
Vapour Similar to gas, no definite volume or shape
Particles What matter is made of
Pure Substance made of only one element or compound
Diffusion The process of things mixing without any help
Expansion Particles speed up, moving faster, getting further apart and taking up more space
Contraction Particles slow down, moving slower, getting closer together and taking up less space
Mass How much matter is in an object
Density How much matter there is for the volume of an object
Volume Amount of space an object takes up
Solute Solid, dissolves in solvent
Solvent Liquid, dissolves the solvent
Soluble Able to dissolve
Suspension A solution which separates over time
Concentration How much solute is in the solution
Reactant Substance present at the start of a chemical reaction
Product Substance formed in a chemical reaction
Sieving Pouring a mixture through a sieve to remove large solids
Decanting Pouring off water in a mixture
Distilling Evaporating liquid out of a mixture and collecting it in another container
Filtering Pouring a mixture through a paper filter to remove solids
Magnetism Using magnets to remove metals from a mixture
Crystallisation Forming crystals by evaporating the liquid away
Chromatography Separating ink colours on paper using water
Particle theory Particles are too small to see. There are spaces between them. Particles are always moving. High temperatures make particles move faster. There are attractive forces keeping the particles together.
Created by: MissEichler