The two most abundant gases in our atmosphere, in order from greatest to least
What are nitrogen and oxygen
100
Measure precipitation
What is a rain gauge
100
definition of air mass
What is a large body of air where temperature and moisture content are similar throughout
100
An electrical discharge between two oppositely charged areas
What is lightning
100
Air is matter because
What is air has mass and takes up space
200
The pressure of air at sea level
What is 1kg/cm/cm
200
Lines on a map of equal temperature
What isotherms
200
The area where two air masses meet
What is a front
200
A column of air that as high speeds, low central pressure and touches the ground
What is a tornado
200
Water changes state from a liquid to a gas
What is Evaporation
300
The layer of the atmosphere where weather occurs
What is the troposphere
300
Conditions in which clouds form
What is moist air with low pressure
300
The air masses that affect the United States
What mP, cP, mT, cT
300
Storms that originate off the coast of Africa, and get much of their energy from the warm Atlantic ocean
What is a hurricane
300
If moisture ___________________ around dust then clouds form
What is condenses
400
How do you make air less dense?
What is by adding energy, such as heat
400
The tools used to measure air pressure, wind speed and relative humidity
What are: barometer, anemometer, and wet/dry bulb thermometer or hygrometer
400
This usually causes falling temperatures and thunderstorms
What is when a cold front moves in and pushes a warm front upward
400
Why do you think most tornadoes occur in the late afternoons and evenings?
What is there is more energy or heat in the atmosphere
400
Humidity is affected by this
What is air temperature
500
Second Law of Thermodynamics
What is energy flows from areas of high pressure to low pressure, or energy flows from high temp to low temp
500
Relative Humidity
What is the amount of water in the air compared to the maximum amount of water that the air can hold
500
Warm air caught between two cold air masses
What is a occuluded front
500
The cause of wind
What is uneven heating of Earth's surface
500
How evaporation in the water cycle occurs
What is the sun warms the planet, water molecules at surface speed up and spread apart. They change into a gas and move away from the surface of the planet