Science Quiz book 3 lesson3 Flashcards
(21 cards)
What is a weather report
predictions of the weather with variables of temperature , air pressure, humidity, precipitation, and wind
Weather definition
Atmospheric conditions, along with short term changes.
How is temperature measured
Thermometer or Sundial
What is air pressure
weight of molecules in large air masses
What is used to to measure air pressure
barometer
What is used to measure wind speed
anemometer
What is humidity
Amount of moisture in air
What are different types of precipitation
rain snow sleet hail
What is an air mass
large bodies of air that have uniform temperature, humidity, and air pressure.
Define maritime polar air mass
air mass over WATER polar regions
Define maritime tropical air mass
air masses over tropical WATER regions.
Define a continental polar air mass
air mass over polar land
Define continental tropical air mass
air masses over tropical land
Define arctic air mass
air masses over arctic land and water.
How does a high-pressure system form
Low temp molecules are farther apart
What is a weather front
a boundary between two air masses
How does a low pressure system form
high temps and molecules are farther apart
What is a cold front
cooler air moving towards warmer air causing severe weather. faster
what is a warm front
Warmer air moving towards cooler air causing long steady rains. slower
What is a stationary front
two air masses stall light rain
What is an occluded from
cold front into a warm front.
