Air Around You
Air Quality
Air Pressure
Layers of the Atmosphere
Misc.
100
provides oxygen and other gases traps energy from the sun protects against meteorids
What is a way in which the atmosphere is important to life on Earth.
100
by the burning of fossil fuels
What is the way that most air pollution is produced?
100
consists of a glass tube open at the bottom end and partially filled with mercury
What is a mercury barometer?
100
where the Earth's weather occurs
What is the troposphere?
100
where satellites are found
What is the exosphere?
200
nitrogen
What is the most abundant gas?
200
It forms when nitrogen oxides, hydrocarbons and other pollutants react in the presence of sunlight.
What is photochemical smog?
200
has an airtight metal chamber and is without liquid
What is an aneroid barometer?
200
where most meteoroids burn up
What is the mesosphere?
200
the layers of the atmosphere are classified according to changes in this
What is altitude?
300
The condition of Earth's atmosphere at a particular time and place.
What is weather?
300
forms when nitrogen oxides, hydrocarbons, and other pollutants react in the presence of sunlight
What is photochemical smog?
300
another name for elevation
What is altitude?
300
where the ozone layer absorbs ultraviolet radiation
What is the stratosphere?
300
the temperature decreases in this layer
What are the changes in temperature that occur as you move upward through the troposphere?
400
The layer of gases that surrounds the planet.
What is the atmosphere?
400
forms when nitrogen oxides and sulfur oxides combine with water in the air
What is acid rain?
400
when altitude decreases
What is air pressure decreasing?
400
divided into the exosphere and ionosphere
What is the thermosphere?
400
a trail of hot, glowing gas left by a meteoroid as it burns up in the atmosphere
What is a shooting star?
500
Because the amount of water vapor in the air varies greatly.
Why are the amounts of gases in the atmosphere shown as percentages of dry air?
500
ocean salt molds plant pollen forest fires soil erosion volcanoes
What is an example of a natural source of particles in the atmosphere?
500
because it has low pressure and density, there are fewer oxygen molecules in each lungful of air
Why is the air at the top of a mountain hard to breathe?
500
where the aurora borealis or Northern lights occur
What is the ionosphere?
500
the force pushing on an area or surface
What is pressure?
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