boiling point - the temperature at which a substance changes state from a liquid into a gas, condense  - physical change of water vapor turning back into a liquid, evaporate - physical change when a liquid is turned into a gas, freezing point - the temperature at which a substance changes state from a liquid to a solid, physical change - a change in the size, shape, or state that does not change the type of matter, Law of Conservation of Mass - a physical law that states that matter is not created or destroyed during a chemical reaction, melting point - the temperature at which a substance changes state from a solid into a liquid, chemical properties - properties that lead to a chemical change or reaction, chemical change - a change of matter that occurs when atoms link together in a new way, creating a new substance different from the original substances , chemical reaction  - an event that occurs as two or more substances are combined to form a new substance, corrosion - the process of metals reacting with air, causing the metal to rust or tarnish, combustible  - the ability of matter to catch fire or burn, reactant  - the original substance at the beginning of the a chemical reaction, product - the substance at the end of a chemical reaction, precipitate - a solid formed from the chemical reaction of some solutions, tarnish - a thin layer of corrosion that forms over copper, brass, aluminum, and other similar metals as their outermost layer undergoes a chemical reaction ,

Unit 8: Physical and Chemical Changes Vocabulary

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