| A | B |
|---|
| conduction | the reason a spoon gets hot when it is in a bowl of hot soup |
| change of state | the conversion of a substance from one physical form to another |
| specific heat | the energy needed to change the temperature of 1 kg of a substance by 1 degree |
| greenhouse effect | Earth's atmosphere tapping thermal energy radiated by the sun |
| thermal expansion | the increase in the volume of a substance due to an increase in temperature |
| thermal energy | the total kinetic energy of the particles in a substance |
| heat | the transfer of energy between objects that are at different temperature |
| thermal pollution | excessive heating of a body of water |
| conductor | a material that conducts thermal energy well |
| heat engine | a machine that uses heat to do work |
| convection | the transfer of thermal energy by the movement of a liquid or gas |
| radiation | the transfer of thermal energy through space |
| temperature | the measure of the average kinetic energy of the particles in an object |
| insulator | a material that conducts thermal energy poorly |
| absolute zero | the lowest temperature on the Kelvin scale |
| state of matter | solid, liquid, gas |
