Name that cloud!
most likely to produce heavy rain and hail.
Cumulonimbus
long sea waves that are usually produced by an earthquake.
Tsunamis
Temperature affects the _______ and ________ of an air mass.
density and pressure
What does a wind vane tell us?
A change in wind direction
the movement of air caused by differences in air pressure
wind
thin and wispy
Cirrus
a long period of time with little or no rainfall
drought
Weather is affected by ___________, ____________, and _____________.
air temperature, air pressure, and humidity.
What instrument measures air pressure?
Barometer
a local wind that blows from an ocean or sea toward the land
sea breeze
look like fluffy balls of cotton
cumulus
a spiraling, low-pressure air mass that builds over the ocean. It begins as a tropical storm and becomes larger.
hurricane
Local winds are caused by _______________.
unequal heating of the earth.
What instrument measures wind speed?
Anemometer
a relatively calm area near the equator where warm air rises
doldrums
grey clouds that cover the sky and may produce a light rain
Stratus
a moving, rotation that appears to be funnel-shaped, causing high winds causing devastation and destruction.
tornado
The doldrums and the horse latitudes are _______________.
global calm areas.
What is it called when a warm front and a cold front meet and can’t move around each other and stand still?
Stationary front
a line used on a map or chart connecting points of equal air pressure
isobar
low, lumpy clouds that form in layers, may produce rain or snow.
Stratocumulus
Most earthquakes occur on _________ between plates.
fault lines
Air masses are large bodies of air that maintain their ___________, ____________ and _______________.
humidity, temperature and pressure.
Explain how a rain gauge works.
Mrs. Pearce said yes
a very large body of air that maintains uniform temperature, humidity, and pressure as it moves
air mass