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
Chapter 16
Vocabulary Review
| Term | Definition |
|---|---|
| Weather | The short term state of the atmosphere, including temperature, humidity, precipitation, wind and visibility. |
| Humidity | The amount of water vapor in the air. |
| Relative Humidity | The ratio of the amount of water vapor in the air to the amount of water vapor needed to reach saturation at a given temperature. |
| Water Cycle | The continuous movement of water from sources on the Earth's surface into the air, onto and over land, into the ground, and back to the surface. |
| Condensation | When water vapor cools and changes from a gas to a liquid. Clouds form by this process. |
| Evaporation | When liquid water changes into water vapor, which is a gas. |
| Runoff | Water, usually from precipitation, that flows across the land and collects in rivers, streams and eventually the ocean. |
| Precipitation | When rain, snow, sleet, or hail falls from the clouds to the Earth's surface. |
| Saturated | When air holds all of the water that it can at a given temperature. |
| Pyschrometer | An instrument that is used to measure relative humidity. It contains both a wet and dry bulb thermometer. |
| Dew Point | The temperature at which a gas condenses into a liquid. |
| Cloud | A collection of millions of tiny water droplets or ice crystals. |
| Cumulus Clouds | Puffy white clouds that tend to have flat bottoms. Usually indicates fair weather but can produce thunderstorms. |
| Cumulonimbus Clouds | Large cumulus clouds that produce lightning. |
| Stratus Clouds | Clouds that form in layers and can produce all types of weather.. |
| Nimbostratus Clouds | Dark stratus clouds that produce light to heavy rain. |
| Fog | A Stratus cloud that forms near the ground. |
| Cirrus Clouds | Thin, feathery white clouds found at high altitudes. |
| Air mass | A large body of air where the temperature and moisture content are similar throughout. |
| Source regions | Area over which air mass forms. |
| Front | The boundary between air masses of different densities and usually different temperatures. |
| Cyclone | An area in the atmosphere that has lower pressure than the surrounding areas and has winds that spiral toward the center. |
| Anticyclone | The rotation of air around a high pressure center in the direction opposite to Earth's rotation. |
| Cumulus Clouds | Heaping puffy clouds |
| Stratus | Layered clouds |
| Cirrus | Curled |
| Cirro | High clouds |
| Alto | Medium level clouds in the atmosphere. |
| Nimbo | clouds that produce precipitation |
| Strato | Lowest |
| Thunderstorm | A usually brief heavy storm that consists of rain, strong winds, lightning and thunder. |
| Lightning | An electric charge that takes place between two oppositely charged surfaces, such as between two clouds, or between two parts of the same cloud. |
| Thunder | The sound caused by the rapid expansion of air along an electrical strike. |
| Tornadoes | A destructive rotating column of air that has very high wind speeds, is visible as a funnel shaped cloud and touches the ground. |
| Hurricane | A severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low pressure storm center. |
| Typhoons | Hurricanes in the western Pacific Ocean. |
| Cyclones | Hurricanes that form over the Indian Ocean. |
| Hurricane Eye | Center of the hurricane, a core of warm calm air with low pressure and light winds. |
| Hurricane Eye Wall | Surrounds the eye made of bands of cumulonimbus clouds. |
| Rain Bands | Bands of rain outside the eye wall of the hurricane. |
| Storm Surge | A wall of water that builds up over the ocean because of strong winds and low atmospheric pressure. |
| Tornado Watch | A weather alert that lets people know that tornado might happen. |
| Tornado Warning | A weather alert that lets people know that a tornado has been spotted. |
| Weather Forecast | A prediction of weather conditions over the next 3 to 5 days. |
| Meteorologist | A person who observes and collects data on atmospheric conditions to make weather predicitions. |
| Weather Balloons | Carry equipment into the atmosphere that aids in measuring temp, winds speed, etc... |
| Thermometer | A tool used to measure air temperature. |
| Barometer | An instrument used to measure air pressure. |
| Anemometer | An instrument used to measure wind speed. |
| Radar and Doppler Radar | Used to find the location, movement, and amount of precipitation. |
| Weather Satellites | Orbit the earth providing images of weather systems. |
| Severe Weather | Weather that can cause property damage and sometimes death. |
Created by:
200371966
Popular Science sets