matter - anything that has mass and takes up space, pure substance - matter with a composition that is always the same., physical property - a characteristic of matter that can be observed or measured without changing the identity of the matter., heterogeneous mixture - a mixture in which two or more pure substances are not evenly mixed., homogeneous mixture - a mixture in which two or more pure substances are evenly mixed., solution - another name for a homogeneous mixture., dissolve - to form a solution by mixing evenly., Element - A pure substance that consists of only one type of atom and cannot be broken down into simpler substances., Compound - A pure substance made up of two or more elements chemically combined in a fixed ratio., Mixture - A combination of two or more substances where each substance retains its own chemical properties., Physical property - A characteristic of matter that can be observed or measured without changing the substance's chemical composition., Chemical property - A characteristic of matter that can only be observed when a substance undergoes a chemical change or reaction., Physical change - A change in which the appearance of a substance might change, but its chemical makeup stays the same., Chemical change - A change that results in the formation of one or more new substances with different properties., Precipitate - A solid that forms and separates from a solution during a chemical reaction., Filtration - A method of separating a solid from a liquid in a heterogeneous mixture., Evaporation - The process of a liquid changing into a gas, used to separate a dissolved solid from a liquid., Distillation - A method of separating mixtures based on differences in the boiling points of the components., Magnetic separation - A method of separating magnetic materials from non-magnetic materials in a mixture., Solute - The substance that is dissolved in a solution., Solvent - The substance that does the dissolving in a solution., Solution - A homogeneous mixture in which one substance is dissolved in another., Reactant - A substance that takes part in and undergoes change during a chemical reaction., Solubility - The ability of a substance to dissolve in a solvent.,

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