| A | B |
|---|
| Conductor | allows energy to flow through it easily |
| Dissolving | break down into small pieces and spread evenly throughout a liquid (water) |
| Electrical energy | energy that is absorbed or delivered by an electric circuit |
| Gas | state of matter in which the substance expands to take both the shape and the volume of its container |
| Insulator | does not allow energy to flow through it easily |
| Liquid | take the shape of their container, filling the bottom of the container first; has the ability to flow |
| Magnetism | a force of attraction that causes a magnetic material to move |
| Mass | amount of matter in something |
| Matter | anything that has mass and takes up space |
| Melting / freezing point | temperature at which a substance changes from a liquid to a solid or a solid to a liquid by the loss or addition of heat; for water this temperature is 0°C |
| Metric system | decimal measuring system based on the meter, liter, and gram as units of length, volume (capacity), and weight or mass |
| Mixture | combination of two or more substances that can be easily separated in some physical way |
| Physical properties | properties of matter that can be observed, measured, or changed without changing the matter itself |
| Relative density | floating or sinking when compared to water |
| Solid | definite shape and size |
| Solubility | ability of a substance to dissolve in another substance, such as sugar dissolving in water |
| Solution | type of mixture in which the particles of one or more substances are dissolved (uniformly dispersed throughout) in another substance |
| States of matter | the forms matter can take, such as solid, liquid, and gas; sometimes called phases of matter |
| Thermal energy | energy related to the temperature of an object or a substance |
