Tp1
The amount of water vapour in the air.
Humidity
The main heat source for Earth.
Sun
Warm air rising is called this.
Convection
The temperature air must cool to become saturated.
dew point
Small floating droplets.
Drizzle
Water in its gas form.
Water vapour
The atmosphere is heated from below or above?
below
Horizontal movement of air.
advection
Relative humidity is measured as this.
%
Frozen raindrops that bounce on the ground.
ice pellets
Name one major source of water vapour in the atmosphere.
oceans / lakes / rivers / wet ground / plants
The daily heating and cooling cycle of Earth.
diurnal variation
Mixing of air due to friction.
Turbulence
What happens to RH when air warms?
decreases
Soft ice pellets formed in clouds.
graupel
The process where water turns into vapour.
Evaporation
What causes seasons?
Earth’s axial tilt
Sinking air that warms due to pressure.
compression (subsidence)
What happens when RH reaches 100%?
Precipitation/condensation
Precipitation formed by sublimation.
snow
Why is humidity important to weather?
Because water vapour can form clouds and precipitation.
Name one temperature measurement scale used in weather.
C
F, K
Rising air that expands and cools.
adiabatic cooling
Does warm or cold air hold more moisture?
Warm air
Forms in strong thunderstorm updrafts.
hail