| Term | Definition |
| Conservation of mass | mass of reactants= mass of the products |
| Reactant+Reactant | product(s) |
| Chemistry | properties of matter and how matter changes |
| elements | a substance made of 1 king of atom broken down |
| mixture | Physically combined |
| Solution | mixture of of any 2 liquid substances, salt and water |
| solute | salt |
| solvent | Water |
| Physical Change | A property change but the substance stays the same |
| chemical change | 2 or more substances chemically combined to produce a new substance |
| Evidence of a chemical change | gas produced, bubbles, color,smoke |