science quiz Flashcards
memorize
what is a weather report?
predictions of the weather
what variables can i expect from a weather report?
temp, air pressure, wind, precipitation rates, humidity
weather def
atmospheric conditions along with short term changes.
how is temp measured?
thermometer/sundial
what is air pressure?
weight of molecules in large air masses
how is air pressure measured?
barometer
what is used to measure wind speed?
anemometer
what is humidity?
the amount of moisture in the air
name different precipitations
rain, snow, sleet, hail
what is an air mass
large bodies of air that have uniform temps, humidity, air pressured
define maritime polar
air masses over water polar regions
define maritime tropical
air masses over water tropical regions
define continental polar
air masses over polar land
define continental tropical
air masses over tropical land
define arctic air mass
air masses over arctic land/water
how does high pressure system form?
low temp and molecules are closer togetherh
how does low pressure system form?
high temp and molecules are farther apart
what is a weather front?
a boundary between two air masses
what is a cold front?
cold air moves towards warm air
what is a warm front?
warm air moves towards cold air
what is a stationary front?
boundary between two air masses stalls
what is an occluded front?
cold front catches up with a warm front
how do the different weather variables change as a cold front pass through?
many heavy storms go over, hail, sleet, snow, showers
how do the different weather variables change as warm front passes through?
the temp goes up and there are stormy rains