| A | B |
|---|
| physical property | a characteristic of a substance that can be observed without changing the identity of the substance |
| density | a measure of the amount of mass in a given volume of a substance |
| physical change | a change in any physical property of a substance, not in the substance itselv |
| chemical property | describes how a substance can form a new substance |
| chemical change | the change of one substance into another substance |
| melting | the process by which a solid becomes a liquid |
| melting point | the temperature at which a substance becomes a liquid |
| freezing | the process by which a liquid becomes a solid |
| freezing point | the temperature at which a liquid becomes a solid |
| evaporation | a process by which a liquid becomes a gas |
| sublimation | the process by which a solid changes directly to a gas |
| boiling | a process by which a liquid becomes a gas that can be identified by the formation of bubbles |
| boiling point | the temperature at which a liquid boils |
| condensation | the process by which a gas changes its state to become a liquid |
| kinetic energy | energy in motion |
| potential energy | stored energy |
| energy | ability to cause change |
| energy efficient | a measurement of usable energy after an energy conversion |
| law of conservation of energy | states that energy can neither be created nor destroyed |
| mechanical energy | Example of this energy is putting your book on a shelf |
| sound energy | Energy from vibration of particles in a solid, liquid, or gas |
| chemical energy | Energy that is stored in the chemical composition of matter. |
| thermal energy | The total amount of energy from the movement of particles in matter. |
| Electromagnetic energy | Energy that is transmitted through space. |
| Nuclear energy | Energy that comes from the nucleus of an atom |
| matter | anything that has mass and volume |
| mass | the amount of matter an object contains |
| beam balance | a tool used to measure mass |
| kilogram | unit of measurement of mass |
