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Physical science
| Term | Definition |
|---|---|
| Atom | The basic particle of an element that has the properties of that element |
| Boil | The change in state from a liquid to gas |
| Condense | The change in state from a gas to a liquid |
| Evaporate | The process by which molecules at the surface of a liquid absorb enough energy to change to a gas |
| Freeze | The temperature at which a liquid freezes |
| Gas | A state of matter with no definite shape or volume |
| Insert | Having little or no ability to react |
| Kinetic energy | Energy that an object has due to its emotion |
| Liquid | A state of matter that has no definite shape but has definite volume |
| Matter | Anything that has mass and takes up space |
| Melt | The temperature at at which a substance changes from a solid to a liquid |
| Molecule | a neutral group of two or more atoms held together by covalent bonds |
| Particle | Smallest possible of unit matter |
| particle motion | ways in which atoms, ions , or molecules move |
| Phase | a physically distinctive form of matter , such as a solid to a liquid or gas |
| Phase change | a change from one state [solid or liquid or gas] to another without a change in medical composition |
| Pressure | the physical force exerted on an object |
| Pure substance | A substance made of only one kind of matter and having definite properties |
| Solids | A state of matter that has definite shape and volume |
| System | a group of parts that work together as a whole |
| Temperature | a measure of the average energy of motion of the particles of a substance |
| Thermal energy | the total kinetic and potential energy of all the particles of an substance |
| vapor | gaseous state of a substance that s a liquid or a solid at room temperature |
| Conduction | the transfer of thermal energy from one object to another |
| Convection | the transfer of thermal energy by the movement of fluid |
| Radiation | the transfer of energy by electromagnetic waves |