Atmosphere
Weather occurs in the _______, the first layer of the atmosphere
troposphere
TRUE or FALSE
An air mass is a body of air that has about the same temperature and moisture.
An air mass is a body of air that has about the same temperature and moisture.
Moving air is called...
wind
The weight of air is called...
air pressure
As altitude increases, air pressure...
decreases
Which layer protect the earth from meteors?
Mesosphere
TRUE or FALSE
A front is the boundary where two unlike air masses meet.
TRUE
TRUE or FALSE:
Global winds are influenced by temperature changes in a small area.
False
Local winds are influenced by temperature changes in a small area.
The measurement of the distance above sea level is ...
altitude
Air pressure is measured with...
barometer
In the stratosphere what protects the surface of the earth from the Sun's harmful rays?
Ozone layer
A ___ pressure (light) air mass usually has warm, moist air.
low
TRUE or False:
Local winds move in large circular belts around the earth.
FALSE global winds move in large circular belts around the earth.
What instrument shows the wind speed?
anemometer
Air is a mixture of nitrogen, ___, carbon dioxide, and other gases.
oxygen
Which layer is where Satellites are found?
Exosphere
Describe a Cold front
is a weather term that describes what happens when a mass of cooler air moves into an area where the air is warmer
Wind are identified by the ____ from which they blow.
direction
The condition of the atmosphere at any moment is time is called...
weather
The atmosphere is held close to the earth by ____.
gravity
Which layer do you find the northern lights?
Thermosphere
Describe a Warm Front
warm air mass pushes into a cooler air mass,
What instrument shows the direction wind is blowing from?
wind vane
The thin blanket of gases and dust particles that surround and protect the earth is the _____.
atmosphere
A ___ pressure (light) air mass usually has warm, moist air.
high