A mixture of gasses, primarily nitrogen, oxygen, and argon, that surrounds Earth
What is the Atmosphere
An instrument used to determine the direction of the wind
What is a Wind vane
A cloud that form at low altitudes with a top that resembles cotton balls
What is Cumulus clouds
A body of air with horizontally uniform temperature, humidity, and pressure
What is Air Mass
The front edge of advancing warm air mass that replaces colder air with warmer air
What is a Warm front
The layer of the atmosphere that contains the ozone layer.
What is the Stratosphere
An instrument that measures and indicates temperature
What is a Thermometer
A cloud that has the highest altitude of any cloud in the sky
What is Cirrus clouds
An air mass that originates in Canada and brings cold, dry air
What is Continental polar
A brief, heavy storm with rain, wind, lightning, and thunder
What is a Thunderstorm
The coldest layer of the atmosphere
What is the Mesosphere
An instrument used to measure wind speed
What is an Anemometer
A cloud that covers large areas of sky and often block out the sun
What is Stratus clouds
An air mass that originates in U.S. southwest and brings warm, dry air
What is Continental tropical
The front edge of a moving mass of cold air that pushes beneath a warmer air mass like a wedge
What is a Cold front
The uppermost layer of the atmosphere and it includes the ionosphere
What is the Thermosphere
An instrument that measures atmospheric pressure by registering the changes in the bending out of the sides of a sealed metal container
What is an Aneroid barometer
A fog that results from the nightly cooling of Earth
What is Radiation fog
An air mass that originates in North Atlantic and North Pacific areas and brings cold, moist air
What is Maritime polar
A destructive, rotating, funnel-shaped column of air with high wind speeds
What is a Tornado
The lowest layer of the atmosphere and is the level where all weather conditions exist
What is the Troposphere
An instrument that measures atmospheric pressure by registering changes in the level of mercury inside a tube
What is a Mercurial barometer
A fog that forms along coasts when warm, moist air moves across a cold surface
What is Advection fog
An air mass that originates in southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, or Pacific Ocean and brings warm, moist air
What is Maritime tropical
A severe storm that develops over tropical oceans, whose strong winds spiral in toward the low-pressure storm center
What is a Hurricane