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unit 3 vocabulary


matter anything that has mass and takes up space
mass describes the amount of matter in an object
weight a measurement of gravitational pull on a object
volume the amount of space that an object takes up or occupies
density a measurement of the amount of the amount of mass in a given object
physical property a characteristic of a substance that can be observed or measured without changing the identity of the object
chemical property describes a substance ability to change into a new substance with a different property (common chemical property include flammability and reactivity with substances )
physical change change that affects one or more physical properties of a substance
chemical change occurs when one or more substances substances change into entirely new substances with different properties
law of conservation of energy states that energy cannot be created or destroyed energy can only change from one from to another
law of conservation of mass states that in ordinary chemical and physical changes ,mass id not created or destroy .mass is only transformed into different substances
Created by: reidmcgibney