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Vocab List #1 8

Matter Anything that has mass and occupies space.
Substance A single kind of matter that is pure and has specific properties.
Chemical Property A characteristic of a pure substance that describes it's ability to change into a different substance.
Atom The basic particle form which all elements are made.
Molecule A particle made of two or more atoms bonded together.
Chemistry The study of the properties of matter and how matter changes.
Chemical Formula A formula that gives the elements in a compound and the ratio of atoms.
Physical Property A characteristic of a pure substance that can be observed without changing it into another substance.
Mixture Two or more substances that are mixed together but not chemically combined.
Element A pure substance that cannot be broken down into other substances by chemical or physical means.
Heterogeneous Mixture A mixture in which pure substances are unevenly distributed throughout the mixture.
Compound A pure substance made of two or more elements chemically combined.
Solution Example of a homogeneous mixture; forms when a substance dissolves.
Weight A measure of the force of gravity on an object.
Density The measurement of how much mass of a substance is contained in a given volume.
Mass A measure of how much matter is in an object.
Volume The amount of space that matter occupies.
Physical Change A change in a substance that does not change it's identity.
Energy The ability to do work or cause change.
Endothermic Change A change in which energy is taken in. (Gets colder).
Chemical Change A change in which one or more substances combine or break apart to form new substances.
Temperature A measure of the average energy of motion of the particles of the substances.
Thermal Energy The total energy of all the particles in an object.
Exothermic Change A change in which energy is given off. (Gets hotter).
Law of conservation of mass The principal that the total amount of matter is neither created nor destroyed during any chemical or physical change.
Created by: Kiran Hiremath