Air Masses and Fronts
What factors are the same throughout an air mass?
Temperature, Humidity, and Air Pressure
How are clouds formed?
Through condensation
How is heat transferred in the troposphere?
by conduction, convection, and radiation
What is precipitation?
any form of water that falls from the sky and reaches Earth's surface.
What weather does a cold front bing?
What weather does a cold front leave?
Brings violent storms
Leaves cooler and fair weather
Thin clouds made of ice crystals and they are seen in fair weather
What two factors do scientists use to describe climates?
Temperature and Precipitation
What is Evaporation?
the process that changes a liquid to a gas (water to water vapor)
What weather does a warm front bring and leave?
Brings rain showers
Leaves warmer and more humid weather
Describe stratus clouds
low and fat clouds that cover the entire sky
What do barometers, thermometers, and anemometers measure?
air pressure, temperature, wind
What is humidity?
The amount of water vapor in the air
What weather does an occluded front bring and leave?
It brings light precipitation and leaves fair and cool weather
Describe cumulonimbus clouds
giant clouds that bring thunderstorms
What causes wind?
unequal heating of Earth and differences in air pressure
What is condensation?
The process that changes a gas to a liquid (water vapor to water)
What weather does a stationary front bring and leave?
Brings and leaves many days of continuous precipitation.
Describe cumulus clouds
white and fluffy clouds
What direction do air masses move?
West to East
What 3 things do we need to make weather?
water, heat, and air