Weather Flashcards
(49 cards)
By which process are clouds and fog formed
Condensation
Rain snow sleet and hail are examples of which process of the water cycle?
Precipitation
During cloud formation, water vapor condenses on what substance
Dust particles
The MAIN reason wind occurs is because of differences in what?
Air pressure
What are thin wispy clouds, composed of ice called?
Cirrus clouds
What are raindrops that freeze as they fall through the air called?
Sleet
As air temperature increases, what happens to air density
Decreases
As altitude increases, air pressure
Decreases
Warm air does what?
It rises, has low air pressure and low density
Cold air does what?
It sinks and has high air pressure and high density
Where does the energy that allows the water cycle to occur come from?
The sun
What is evaporation
Liquid water to liquid water vapor
What is transpiration?
Liquid water evaporates from plants
What is condensation
Water vapor to liquid water(clouds)
What is precipitation
Liquid or solid water falls to the surface
What is runoff
Water flows into water or lake
What is the Coriolis effect
Earth rotates west to east(counterclockwise) this causes winds to turn right in the northern hemisphere(west) and left in the Southern Hemisphere(west)
When air moves horizontally it means?
It goes from high pressure to low pressure
What is wind caused by
Air pressure differences
What are air pressure differences caused by
Changes in air temperature
What are clouds made of
Liquid or solid water condensing(cooling) on particles in the atmosphere
What are the 5 main types of precipitation and describe them
Rain- liquid water
Snow- water vapor turns directly into liquid state
Freezing rain- freeze instantly when hit object
Hail- ice crystals form & begin to fall towards earth
Sleet- a mixture of rain and snow that freeze in way down
Cirrus cloud
Composed of ice and it’s a thin wispy cloud
Fair weather
Stratus cloud
Uniform grey cloud often cover entire sky
light mist or drizzle 12-24 hours before weather change
