| A | B |
| CRYSTAL | A solid form of material that can be identified by its special shape, pattern, or color. |
| GRAM | A metric unit of mass. |
| MILLILITER | A metric unit of capacity. |
| DIATOMACEOUS EARTH | The powdered, skeletal remains of diatoms, which are aquatic organisms in the protist family. |
| SOLUTION | A special mixture formed when a material dissolves into another material and can not be filtered out. |
| SODIUM CHLORIDE | Salt- a white crystalline material that dissolves in water. |
| DISSOLVE | The process when one material spreads out evenly into another so that it SEEMS to disappear- but it doesn’t!! |
| PROPERTY | A characteristic of an object that you can observe such as size, shape, or color. |
| MIXTURE | Two or more materials mixed or stirred together that can be separated and keep their original properties. |
| CHEMICAL REACTION | The process in which two or more materials combine to make one or more new substances that have different properties than the original materials. |
| CITRIC ACID | A white, odorless acid with a sour taste that is used in many candies and drinks. |
| CONCENTRATION | The relative amount of a material in a mixture |
| DENSITY | The ratio of the mass of a material compared to its volume |
| EVAPORATION | The process when liquids turn into gas and disperse into the air, leaving any solid material behind. |
| PRECIPITATE | A solid material that forms during a chemical reaction. |
| SATURATED SOLUTION | A solution where as much solid material as possible has dissolved in a liquid, and any additional solid material sits on the bottom. |
| SOLUBLE | Capable of being dissolved. |
| SOLUTE | A substance that dissolves. Example: salt |
| SOLVENT | The material that the solute dissolves into. Example: water |
| CHEMISTRY | A study of the structure of matter and the interactions between matter and energy. |
| ATOM | The building block of all matter. The smallest particle of an element. |
| MOLECULE | The combination of two or more elements. |
| SOLID | Matter that has a definite shape and always takes up the same amount of space. |
| LIQUID | Matter that flows freely. |
| GAS | Matter that has no definite size or shape. |
| PLASMA | A gas that has been given an electrical charge |
| ELEMENT | A substance that can not be broken down by simple chemical or physical processes. |
| DILUTE | To make a solution less concentrated, usually by adding more liquid. |
| VOLUME | The 3 dimensional space occupied by something. |
| CHANGE | The process of becoming something different. |