| Term | Definition |
|---|
| wind | the movement of air from one place to another caused by differences in air pressure due to unequal heating of the Earths surface |
| local winds | blow from any direction over short distances |
| Sea breeze | blows from the sea during the day |
| land breeze | blows from the land during the night |
| monsoon | seasonal winds that either bring heavy rains or dry lands |
| Global winds | cover very large areas and blows in a specific directions |
| Doldrums | occur at the equator and are very calm winds that are a problem for sailboats |
| anemometer | measures wind speed |
| wind vane | tells you wind directions |
| wind chill factor | the effect of cooling that wind can cause |
| evaporation | the process in which water changes from a liquid to a gas, |
| condensation | the process in which water vapor changes to a liquid when it touches cold surface |
| dew point | the temperature at which water vapor will condense on a cold surface |
| precipitation | forms of water that fall through the atmosphere . |
| 4 forms of precipitation | rain snow sleet hail |
| rain gauge | used to measure rain fall |
| humidity | water vapor in the air |
| relative humidity | the percent of moisture the air holds compared to the amount it can hold at a givin temperature |
| psychrometer | used to measure relative humidity |
| air mass | large bodies of air that caused changes in weather. |
| storms | a violent disturbance in the atmosphere caused when there are sudden changes in air pressure and rapid air movement |
| tornadoes | whirling, funnel-shaped winds that develop in low, heavy cumulonimbus clouds |
| tornadoes are | most likely to occur in spring and summer, tornado alley is in the midwest and are they are the most sever storms on Earth |
| hurricanes | powerful cyclones whose winds blow counter clock wise |
Combine with other sets
Share on Facebook
Share on MySpace