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Chapter 2 Weather Factors
37 cards·by aspeer
What is the name of a temperature scale that is used by scientists because it is a metric scale?
celsius
What is the name of excess water that moves downslope to rivers, lakes, and streams?
runoff
What is the basic principle of convection currents?
density
What is the transfer of heat by electromagnetic space? (through empty space)
radiation
What is the process of the water cycle that causes the formation of clouds from water vapor?
condensation
Which part of the water cycles main source of energy is the sun?
evaporation
Wind develops as a result of differences in _______ and temperature
atmospheric pressure or air pressure
What is the measure of the amount of water vapor in the air?
humidity
What ist he name of the tool used to measure air pressure?
barometer
What is the direct transfer of heat from one substance to another substance it is touching?
conduction
What is used to measure air temperature?
thermometer
Radiation reaches the Earth's surface in the form of ________ _______.
visible light
_______ energy reaches the Earth through radiation
solar
The stage of the water cycle that is powered by suns energy is __________.
evaporation
What two processes drive atmospheric winds?
cold air sinking and warm air rising
What two compounds do humans contribute to the greenhouse effect?
carbon dioxide and methane
Heat travels between two objects with different temperatures, how?
moves from warmer object to colder one
What is a characteristic of a jet stream?
high speed bands of wind
What is a characteristic of a jet stream?
hundreds of kilometers wide
What is a characteristic of a jet stream?
blow from west to east
What is a characteristic of a jet stream?
wander from north to south
How do convection currents work?
taking warm dense air and moving it downward
What areas of Earth are heated by convection currents?
oceans and troposphere
What happens if a chemical soaks into the ground?
the groundwater is now polluted
Who are clouds formed?
by condensation and water vapor collecting dust particles
Is the air pressure at the top of a mountain higher or lower than it is at the bottom?
lower
Is the density at the top of a mountain lower or higher than it is at the bottom?
lower
Compare the temperature at the top of a mountain to the temp at the bottom of the mountain.
The top of the mountain has lower temperature
What process drives atmospheric winds?
warm air rising and cold air sinking
Convection currents distribute heat in the __________ and __________.
atmosphere and oceans
Wind develops as a result of differences in _________ and ___________.
atmospheric pressure and temperature
What causes changes in weather?
Differences in air pressure and changes in humidity
What tool is used to measure air pressure?
barometer
What natural pattern keeps our rivers and lakes full of water?
evaporation and precipitation
What is the downslope movement of excess water to rivers, lakes, and streams?
runoff
The measure of the amount of water vapor in the air is called ____________.
humidity
Air temperature is measured with a _____________.
thermometer