Show:
Atmosphere
Air Pressure
Layers of Atmosphere
Air Quality
Miscellaneous
100
This is the most common gas in the atmosphere.
Nitrogen
100
Finish this sentence: As altitude increases, air pressure ____________________.
decreases
100
In what layer of the atmosphere does weather occur?
The troposphere.
100
define pollutant
pollutants are harmful substances in air, water or soil.
100
How are the layers of the atmosphere determined?
They are determined by temperature.
200
This is the second-most common gas in the atmosphere
Oxygen
200
Finish this sentence, As temperature increases, air pressure ______________.
decreases
200
Name the 4 main layers of the atmosphere in order from layer closest to the earth out.
Troposphere, stratosphere, mesosphere and thermosphere.
200
What two words were combined to form the word "smog"?
Smoke and fog
200
Name the two types of barometers.
The two barometers are: mercury barometer and aneroid barometer.
300
This is the third-most common gas in the atmosphere.
Argon
300
What is the formula for density?
Density = mass / volume
300
Where is the ozone layer found and what is its purpose?
The ozone layer is found in the stratosphere and its purpose is to protect living things from ultraviolet radiation.
300
Name 3 sources of natural pollution.
forest fires, soil erosion, dust storms, mold, pollen, erupting volcanoes.
300
Name 3 things you can do to lower air pollution.
Carpool, walk or ride a bike instead of taking a car, maintain furnaces, use more fuel-efficient vehicle, use less electricity, etc.
400
Why is water vapor difficult to list as a component of the atmosphere?
It is difficult because the amount of it varies so much.
400
In what layer of the atmosphere is air pressure thought to be the lowest & why?
The thermosphere because, as you increase in altitude, air pressure decreases (less air mass above you).
400
In what layer is the aurora borealis (or northern lights) found?
It is part of the the thermosphere (and part of the ionosphere).
400
what is photochemical smog?
It is smog formed from air pollutants reacting with sunlight. This makes a brownish haze.
400
Describe how a mercury barometer and aneroid barometer work.
Air pressure causes a column of mercury to raise or lower in a mercury barometer. An aneroid barometer has an air chamber that moves with pressure changes and causes dials, springs, levers or needles to move.
500
Name three things the atmosphere helps with for life on Earth.
It: 1. burns up meteors, 2. protects life from harmful radiation (uv rays), 3. provides warmth by trapping sun's energy, 4. contains oxygen--needed by most living things.
500
Explain what caused the can to crush in our "Can Experiment".
The can was crushed because air pressure inside the can (due to greater temperature) was lower than the surrounding air pressure. So, the outer air pressure crushed the can.
500
Name the four main layers of the atmosphere and include the ionosphere and ozone layer and exosphere. Start from the Earth and work your way out.
Troposphere, stratosphere (contains ozone layer), mesosphere, thermosphere (contains both the ionosphere and exosphere).
500
Why is Pennsylvania so susceptible to acid rain?
We get the weather from industrialized areas (it contains acid precipitation).
500
What two units are used to measure air pressure?
Millibars (mb) and millimeters of Mercury (mmHg)