| A | B |
| temperature | the average kinetic energy of all the molecules in an object is the object's... |
| kinetic energy | the energy of motion |
| thermal energy | the kinetic energy of molecules |
| a hot substance has... | ...rapidly moving molecules |
| a cold substance has... | ...slowly moving molecules |
| heat | the transfer of thermal energy from one substance to another |
| conduction | the direct transfer of heat between objects that touch |
| convection | the transfer of heat through currents in a gas or liquid |
| radiation | the transfer of thermal energy by electromagnetic waves |
| Three ways thermal energy can be transferred are... | ...by conduction, convection or radiation |
| chemical energy | the energy stored in the bonds between atoms when they join together to form molecules; thermal energy stored as a form of potential energy |