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Vocabulary terms

Matter Anything that has mass and takes up space
Chemistry The study of the properties of matter and how matter works
Substance A single kind of matter that is pure
Physical Property A characteristic of a pure substance that can be observed without changing it into another substance
Chemical Property A characteristic of a pure substance that describes its ability to change into different substances
Element A pure substance that can't be broken down into any other substance by physical or chemical means
Atom The basic particle from which all elements are made
Chemical Bond The force of attraction between two atoms
Molecules Group of two or more atoms held together by chemical bonds
Compound A pure substance made of two or more elements chemically combined in a set ratio
Chemical Formula A formula that gives the elements in a compound and the ratio of atoms
Mixture Two or more substances that are mixed together but not chemically combined
Heterogeneous Mixture A mixture in which pure substances are unevenly distributed throughout the mixture
Homogeneous Mixture A mixture in which substances are evenly distributed throughout the mixture
Solution An example
Weight A measure of the force of gravity on you
Mass The amount of matter in an object
International System of Units Used to measure the properties of matter
Volume The amount of space that matter occupies
Density The measurement of hoe much mass of a substance is contained in a given volume
Physical Change Any change that alters the form or appearance of matter that doesn't make any substance in the matter into difference substances
Chemical Change A change in matter that produces one or more new substances
Law of Conservation of Mass The fact that matter is not created or destroyed in any chemical or physical means
Energy The ability to work and cause change
Temperature A measure of the average energy of random motion of particles of matter
Thermal Energy Total energy of all of the particles in an object
Endothermic Change A change in which energy is taken in
Exothermic Change Release energy
Created by: kailey100