vocabulary
What does humidity mean?
A measure of how much water vapor is in the air.
when does condesation happen.
When warm air collidess with cold surfaces.
what does evaporation mean
when liquid turn into a gas (water vapor)
what is air parcel
a bubble of air of no definite size that retains its shape as it rises or sinks in the atmosphere.
What is wind
Wind is air in motion
What does Air parcel?
An amount of air that moves as a unit.
Why does condensation happen
Either the air is cooled to its dew point or it becomes so saturated with water vapor that it cannot hold any more water.
when does evaporation happen.
when energy forces the bonds that hold water molecules together to break
when do air parcels move
after it is forced to rise or sink
Where does wind move
From high pressure areas to low pressure areas.
What does Atmosphere mean.
The mixture of gases around the planet.
when does condensation usually happen
When the air temperature drops below its dew point
when can evaporation happen
At any temprature
What do air parcels do when they sink?
they shrink and warm up
What time is wind the strongest
During the afternoon because there is more sunshine and temprature changes.
What does meteorology mean?
The science study of weather.
What time is condensation most likely to occur?
clear skies
What time is evaporation most likely to occur?
during daytime
What causes air parcels to rise?
As the denser air reaches the Earth's surface, it spreads out and undercuts the less dense air.
When causes a strong wind
Atmospheric pressure variations
What does condensation mean?
The process by which gases change into liquid.
What temperature stops condensation?
between 19°C and 21°C
What temperature stops evaporation?
below 0
When an air parcel rises it always cools?
true
What makes wind strong
horizontal differences in the air.