Acid - A solution with a pH value lower than 7, Alkali - A solution with a pH value higher than 7, Boiling - The process in which a liquid changes into a gas at the boiling point of the liquid, Boiling point - The temperature at which boiling occurs, Condensation - The process in which a gas changes into a liquid, Density - The mass of matter in a unit volume of the substance, Evaporation - The process in which a liquid changes into a gas at any temperature, Evaporation to dryness - The separation technique that allows all the solvent to change to a gas, leaving behind the solid solute only, Filtration - The separation technique that separates insoluble solids from a solid-liquid mixture, Freezing - The process in which a liquid changes into a solid, Freezing point - The temperature at which freezing occurs, Indicator - A substance that changes colour depending on the acidity or alkalinity of the solution, Magnetic separation - The separation technqiue that separates magnetic material(s) from non-magnetic material(s), Medium - A substance in which an object is placed in, Melting - The process in which a solid changes into a liquid, Melting point - The temperature at which melting occurs, Mixture - A substance formed when two or more substances are mixed, Neutral - A solution with a pH value of exactly 7, pH scale - A scale that can be used to describe the acidity, neutrality and alkalinity of solutions, Rate of dissolving - A measure of how quickly a solute can dissolve completely in a solvent, Solubility - The maximum amount of a solute that can dissolve in a given amount of solvent at a given temperature, Solute - A substance that dissolves in a solvent to form a solution, Solution - A mixture formed when a solute is dissolved in a solvent, Solvent - A substance that dissolves a solute to form a solution, Suspension - A mixture formed when a solid does not dissolve in a liquid, Universal indicator - A type of indicator ,
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Topic 6 Matter
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