| A | B |
| Chemistry | study of matter and how matter changes |
| Physical property | A characteristic of a substance that can be observed without changing the substance into another substance |
| Chemical property | A characteristic of a substance that describes its ability to change into different substances |
| Physical change | A change that alters the form or appearance of a material but does not make the material into another substance |
| Chemical reaction | The process in which substances undergo chemical changes that result in the formation of new substances |
| Endothermic reaction | A reaction that absorbs energy in the form of heat |
| Exothermic reaction | A reaction that releases energy in the form of heat |
| Characteristic | a way to describe something/someone |
| substance | stuff |
| reaction | an action because of something happening |
| balanced chemical reaction/equation | same number of atoms are on the reactant side and the product side |
| catalyst | speeds up the chemical reaction process |
| reactant | the atoms/molecules that you start with in a chemical reaction |
| product | the atoms/molecules that you end with in a chemical reaction (the new stuff) |