| A | B |
|---|
| Chemistry | the study of the properties of matter and how matter changes |
| Matter | The particles that make up everything in the universe |
| Element | a substance that cannot be broken down into any other substances by chemical or physical means |
| Atoms | Tiny particles that make up atoms. |
| Atomic Symbol | One or two letters that represent an element. |
| Compound | A substance made of two or more elements chemically combined in a specific ratio. |
| Formula | Shows the ratio of elements in a compound. |
| Mixture | Made from two or more substances--elements, compounds, or both, that are together in the same place but are not chemically combined. |
| Physical Change | A change that alters the form or appearance of a material but not the chemmical composition. |
| Chemical Change | A change in matter that produces new substances. |
| Physical & Chemical Changes | Two basic ways matter can change. |
| Weight | The measure of the force of gravity on an object. |
| Mass | The measurement of how much matter an object contains. |
| SI units | International Units for measuring matter. |
| Volume | The amount of space that matter occupies. |
| Density | The amount of matter in a specified space. |
| Chemical Bond | The force that holds two atoms together. |
| Molecule | A combinatino of two or more atoms that are bonded together. |
| Electrolysis | A method that breaks down a copper compound. |
