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Unit 3 Vocabulary

Matter

TermDefinition
Matter Anything that has mass and takes up space.
Mass Describes the amount of matter in an object.
Weight A measurement of gravitational force on an object.
Volume The amount of space an object takes up or occupies.
Density A measure of the amount of mass in a given volume.
Physical Property A characteristic of a substance that can be observed or measured without changing the identity of the substance.
Chemical Property Describes a substance's ability to change into a new substance with different properties ( common chemical properties include flammability and reactivity with substances such as oxygen , water , and acids ) .
Physical Change Change that affects one or more physical properties of a substance.
Chemical Change Occurs when one or more 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 form to another.
Law of Conservation of Mass States that in ordinary chemical and physical changes , nass is not created or destroyed , mass is only transformed into different substances.
Created by: alannapitre
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