Test 8 Flashcards
The basic cause of all weather
the sun
scientists who study the weather
meteorologists
the imaginary line running through the earth from North Pole to South Pole
axis
the air that we live in receives most of its warmth from
the ground
different seasons are caused by the ___ of the earth’s axis
tilt
winds are produced by ____ differences on the earth.
temperature
warm air is ___ than cool air
lighter
the earth’s surface spins at over ___ miles per hour
1,000
Be able to label these wind systems on the diagram of the earth. Mark with a star the two areas of the earth that have the most changeable weather
polar easterlies prevailing westerlies* (northeast) trade winds (southeast) trade winds prevailing westerlies* polar easterlies
The amount of water vapor that the air can hold at a given temperature is the ___ ____ of the air
relative humidity
the lowest possible temperature at which air is able to hold all of its water vapor
dew point
the process in which water vapor leaves the air and changes into liquid water is called
condensation
Air is saturated when the humidity of the air is ___ percent
100
water vapor that condenses to form liquid water on the ground is called ___
dew
water vapor that condenses and forms frozen water on the ground is called ___
frost