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Properties of Matter
Properties of Matter (Unit 3)
| Term | Definition |
|---|---|
| Conductor | a substance or object that allows energy to flow through it easily |
| Dissolving | the process by which substances 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 | a state of matter in which the substance expands to take both the shape and the volume of its container; molecules are far apart and move freely |
| Insulator | a substance or object that 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; molecules are spaced apart and slide past each other |
| Magnetism | a force of attraction that causes a magnetic material to move |
| Mass | the amount of matter in something |
| Matter | anything that has mass and takes up space |
| Melting point/freezing point | the 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 | the decimal measuring system based on the meter, liter, and gram as units of length, volume (capacity), and weight or mass |
| Mixture | a 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; molecules are tightly compacted |
| Solubility | the ability of a substance to dissolve in another substance, such as sugar dissolving in water |
| Solution | a type of mixture in which the particles of one or more substances are dissolved (mix evenly) |
| 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 |
| Magnetic | metals attracted to a magnet are iron, nickel, cobalt, and steel |