| A | B |
|---|
| heat | the motion of atoms and molecules, also called kinetic energy |
| more heat energy in a solid, liquid or gas is produced by | increased motion of atoms and molecules |
| heat transfer | when molecules move from warmer to cooler objects |
| conduction | a kind of energy transfer that happens when atoms come in contact |
| radiation | heat energy that travels by waves |
| convection | thermal energy that needs a fluid (water or air) to transfer |
| convection cell | warm air rises, then cools and descends |
| air in the atmosphere | moves from warm regions to cooler regions |
| most of the heating of the atmosphere is done by | convection |
| warm air | is less dense; molecules move faster |
| cool air | is more dense; molecules move slower |
| radiation, conduction, convection | three ways heat is transferred |
| infrared | radiation that is felt as heat |
| thermal energy | total energy of motion in molecules |
| thermometer | how you measure thermal energy |
| how heat travels | from warm areas to cool areas |
