Clouds
A collection of water droplets or ice crystals suspended in the air
What are clouds?
The condition of Earth's atmosphere at a certain place and time
What is weather?
Air that moves horizontally or parallel to the ground
What is wind?
Any form of water that falls to Earth's surface from clouds
What is precipitation?
A large volume of air in which temperature and humidity are same throughout
What is an air mass?
The temperature at which the rate of condensation equals the rate of evaporation
What is the dew point?
The measure of how hot or cold something is
What is temperature?
Wind moves from ______ pressure areas to ______ pressure areas
What is high to low?
The most common form of precipitation
What is rain?
Where two air masses meet
What is a front?
When a warm air mass rises above a cold air mass
What is frontal lifting?
The amount of water vapor in the air
What is humidity?
Used to measure wind direction
What is a wind vane or windstock?
The thing used to measure rain
What is a rain gauge?
When cold air moves under warm air
What is a cold front?
When an obstacle forces an air mass upward
What is orographic lifting?
Pollution and fog means ____________
What is low visibility?
The device used to measure wind speed
What is an anemometer?
Used to measure snow
What is a ruler or meter stick?
When cold and warm air stop moving
What is a stationary front?
The surfaces on which water droplets condense
What are cloud condensation nuclei?
Ways to collect weather data
What are ground stations, water buoys, airplanes, ships, and satellites?
The cause of wind
What are differences in air pressure?
Forms when water vapor becomes solid
What is snow?
Warm air masses bring _______
What is light rain and clear, warm weather?