Physical Change - A change where no new substances are formed, and the change can often be reversed., Chemical Change - A change where new substances are formed, and the change is usually irreversible., Shape - The external outline or appearance of an object or substance., Form - The structure or arrangement of parts in a substance., State - When a substance changes between solid, liquid, and gas states., Expands - When something increases in size or takes up more space., Contracts - When something decreases in size or takes up less space., Mixes - When substances combine physically but don’t form new substances., Condensation - The process of a gas changing into a liquid., Evaporation - The process of a liquid changing into a gas., Melting - The process of a solid changing into a liquid., Freezing - The process of a liquid changing into a solid.,

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