| Term | Definition |
|---|---|
| radiation | direct transfer of energy by electromagnetic waves |
| conduction | direct transfer of heat from one substance to another substance that it is touching |
| convection | transfer of heat by the movement of fluid |
| wind | horizontal movement of air from an area of high pressure to an area of lower pressure |
| anemometer | an instrument used to measure wind speed |
| wind chill factor | increased cooling a wind can cause |
| temperature | average amount of energy of motion of each particle of a substance |
| local winds | winds that blow over a short distance |
| global winds | winds that blow steadily from specific directions over long directions |
| Coriolis Effect | the way Earth's rotation makes winds curve |
| global wind belts | are the trade winds, polar easterlies, and prevailing westerlies |
| jet stream | bands of high-speed winds |
| water cycle | movement of water between the atmosphere and Earth's surface |
| evaporation | process by which water molecules in liquid water escape into the air as water vapor |
| humidity | the measure of amount of water vapor in the air |
| condensation | when molecules of water vapor in the air become liquid water |
| precipitation | any form of water that falls from clouds and reaches Earth's surface |
| drought | long periods of unusually low precipitation |
