| A | B |
|---|
| Chemistry | the study of the properties of matter and how matter changes |
| Element | a substance that cannot be broken down into other substances by chemical or physical change means |
| Atom | the smallest particle of an element |
| Symbol | Usually one or two-letter set of characters that is used to identify an element |
| Compound | A substance made of two or more elements chemically combined |
| Formula | a combination of symbols that shows the ratio of elements in a compound |
| Mixture | Two or more substances that are mixed together but not chemically combined |
| Physical Change | A change that alters the form or appearance of a substance but does not make the material into another substance |
| Chemical Reaction | a process in which substances undergo chemical changes |
| Weight | a measure of the force of the gravity on an object |
| Mass | A measure of how much matter is in an object |
| SI | a system of measurements based on multiples of ten and on established measurement of mass, lenght, and time. |
| Volume | the amount of space that matter occupies |
| Density | the measurment of how much mass of a substance is contained in a given volume |
| Chemical Bond | The force that holds two atoms together |
| Molecule | A combination of two or more atoms that are bonded chemically |
| Electrode | A metal strip that gans or looses electrosis |
| Chemical Change | A change in matter that produces new substances |
| Electrolysis | a process by which an electric current breaks chemical bonds |
