Atmosphere
What instrument is used to measure air pressure?
barometer
An instrument that shows the direction wind is blowing from
wind vane
Any type of solid or liquid water that falls from the atmosphere and reaches the ground is called ________________.
precipitation
A __________ is a snowstorm with strong, freezing winds.
blizzard
The thin blanket of gases and dust particles that surrounds the earth
atmosphere
A body of air that has about the same temperature and moisture is called an _____ ________
air mass
Water vapor in the atmosphere is called __________.
humidity
Ice crystals in the clouds that join together and fall to the earth form ______________
snow
____________ form over land.
Tornadoes
The weight of the air is called _____ ____________.
air pressure
The boundary where two unlike air masses meet is called a __________
front
Raindrops that are pushed up over and over again into tall clouds and freeze before falling to the earth form ____________.
hail
When the prefix nimbo- is added to the name of a cloud, what does it tell you about the cloud?
________ usually falls during the cold weather.
Snow
The measurement of the distance above sea level
altitude
What happens when a cool air mass pushes itself under a weaker warm air mass?
cold front
Condensed water vapor or ice crystals form _________
clouds
Large, fluffy-looking clouds with flat bottoms
cumulus clouds
Which of the following is issued before severe weather begins so that people can prepare for the storm?
weather watch
The condition of the atmosphere at any moment in time is called ___________.
weather
What happens when a warm air mass moves over a slower cool air mass?
warm front
Raindrops that freeze on their way to the earth and land as tiny ice pellets form ___________
sleet
Flat blankets and are usually the lowest clouds in the sky
stratus clouds
When a weather warning is given, has the severe weather already begun?
no
The layer of the atmosphere in which weather occurs is called the ____________.
troposphere
What happens when air masses push against each other but do not move
stationary front
Water droplets in the clouds that join together to make larger drops form ____________
rain
Thin, curly-looking clouds seen high in the sky
Cirrus clouds
They study the atmosphere and the weather
Meteorologists