Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
7th Weather Part 2
Vocabulary cards for weather unit
| Term | Definition |
|---|---|
| Air mass | a body of air with horizontally uniform temperature, humidity, and pressure. |
| High Pressure | a condition of the atmosphere in which the pressure is above average (e.g., in an anticyclone). |
| Low pressure | a condition of the atmosphere in which the pressure is below average (e.g., in a depression). "areas of low pressure almost always bring rain" |
| Frontal boundaries | a narrow transition zone between air masses with differing densities |
| Thunderstorms | A transient, sometimes violent storm of thunder and lightning, often accompanied by rain and sometimes hail. |
| hurricanes | a tropical storm with winds that have reached a constant speed of 74 miles per hour or more. The eye of a storm is usually 20-30 miles wide and may extend over 400 miles. The dangers of a storm include torrential rains, high winds and storm surges. |
| Tornadoes | a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system. |
| Weather conditions | the atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation; |
| wind speed | how fast the wind is moving at a given location |
| temperature | it is a measure of the average translational kinetic energy associated with the disordered microscopic motion of atoms and molecules. |
| humidity | amount of water vapor in the air |
| air pressure | force of air upon an object |
| weather maps | a map that shows current weather conditions and projected changes in weather |
| satellites | a moon, planet or machine that orbits a planet or star |
| radar | an object detection system which uses radio waves to determine the range, altitude, direction, or speed of objects |
| stratus | uniform grayish clouds that often cover the entire sky. They resemble fog that does not reach the ground |
| cumulus | a genus-type of low-level cloud that can have noticeable vertical development and clearly defined edges. Cumulo- means "heap" or "pile" in Latin |
| nimbus | the very dark storm clouds that have precipitation. These clouds are typically present in different forms to form thunderstorms. |
| cirrus | thin, wispy clouds blown by high winds into long streamers. They are considered "high clouds" forming above 6000 m (20,000 ft) |
| alto | high |
Created by:
clupton
Popular Earth Science sets