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chemical change

a change that occurs when one or more substances change into entirely new substances with different properties

chemical equation

a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

chemical property

a property used to characterize materials in reactions that change their identity


The chemical property of being able to burn


the ratio of the mass of a substance to the volume of the substance


the ability to be stretched into wire


the ability of a substance to burn


the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object

Law of Conservation of Mass (Matter)

the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes


the ability to be hammered or shaped without breaking


a measure of the amount of matter in an object

physical change

a change of matter from one form to another without a change in chemical properties

physical property

a characteristic of a substance that does not involve a chemical change, such as density, color, or hardness


a solid that is produced as a result of a chemical reaction in solution


a substance that forms in a chemical reaction


a substance or molecule that participates in a chemical reaction


a process in which one or more substances are changed into others


the ability of a substance to combine chemically with another substance


a measure of the size of a body or region in three-dimensional space


a measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe


the curve at a liquid's surface by which one measures the volume of the liquid


anything that has mass and takes up space

thermal conductivity

the rate at which a substance transfers heat


the ability of one substance to dissolve in another at a given temperature and pressure

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