| A | B |
| temperature | the average energy of the particles in an objec |
| thermal energy | the total energy of the particles in an object |
| heat | the transfer of thermal energy from a warmer object to a cooler one |
| specific heat | the energy needed to raise the temperature of one kilogram of a substance by one Kelvin |
| Kelvin | temperature scale with an absolute zero |
| absolute zero | the point at which no more energy can be removed from a substance |
| Celsius | temperature scale that has 0 degrees as the freexing point of water |
| Fahrenheit | temperature scale used mainly in the U.S. |
| conduction | the transfer of thermal energy between two surfaces that are touching |
| convection | the transfer of thermal energy through currents |
| radiation | the transfer of thermal energy by electromagnetic waves |
| conductor | a material that conducts heat well |
| insulator | a material that does not conduct heat well |