| A | B |
|---|
| electromagnetic waves | a form of energy that can travel through space |
| radiation | direct transfer of energy by electromagnetic waves |
| infrared radiation | a form of energy with wavelengths longer than red light |
| ultraviolet radiation | a form of energy with wavelengths shorter than violet light |
| scattering | reflection of light in all direction |
| greenhouse effect | process by which gases holds heat in the air |
| thermal energy | the total energy of motion in the molecules of substances |
| temperature | measure of how hot or cold a substance is |
| heat | the energy transferred from a hotter object to a cooler one |
| conduction | the direct transfer of heat from one substance to another substance that it is touching |
| convection | the transfer of heat by the movement of a fluid |
