Heat in Troposphere
Air Pressure
Climate or weather
Energy
Atmosphere
100
How does a thermometer work?
temperature increases and the liquid in the thermometer expands and rises. When the temperature decreases the liquid compacts and moves down.
100
What instrument is used to measure air pressure?
Barometer
100
What are the average year to year conditions in an area called?
climate
100
What type of surface reflects most of the suns energy?
snow, arctic areas
100
What layer of the atmosphere does weather take place in?
Troposphere
200
Burning your feet on hot sand is what kind of heat transfer?
Conduction
200
Suppose you are not carrying anything on your back. Why do your shoulders still have pressure on them?
The weight of the atmosphere itself is constantly pressing on your body
200
Why is Earth's surface warmer in the Northern Hemisphere when it is summer there?
Earth's tilt
200
Where does the energy go that is reflected off Earth's surface?
outer space
200
What is the percentage of oxygen in the atmosphere
21%
300
The upward movement of warm air and the downward movement of cool air form what?
convection currents
300
What happens to air pressure as you increase altitude?
Air pressure decreases
300
Are climate regions marked by clear boundaries?
No, there is some overlap of climate regions
300
What is the process that holds heat in the air called?
Greenhouse effect
300
What is the name of the most abundant gas in the atmosphere
Nitrogen
400
The troposphere is heated mainly by what? (not the sun)
convection
400
Why is air pressure greater at sea level than it is at the top of a mountain?
Air pressure is greater at sea level because sea-level air has the weight of the whole atmosphere pressing down on it.
400
What is weather?
The condition of Earth's atmosphere at a particular time and place
400
Why would a forest be warmer than a grassy field on a winter day with no wind?
The forest would absorb more sunlightand radiate it as heat
400
What is our atmosphere?
The gases that surround Earth
500
Heat is moved through the tropospher mainly by what?
convection currents
500
Why doesn't air pressure crush objects such as your desk?
Because it pushes in all directions
500
What are the two major factors that scientists use to classify climates?
Temperature and Precipitation
500
What is the word that means the amount of reflected energy
Albedo
500
Why is the atmosphere important to living things?
It provides sunlight, warmth, oxygen, liquid water
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