Show:
Whats in it
Know the Layers
Great song by Queen
and other hits
Nitrogen, altitude, density, Temperature, oxygen, pressure, volume, atmosphere
True or False with a twist
100
The percentage of Oxygen in the atmosphere is approximately
21 percent
100
The warmest layer of the atmosphere
Thermosphere
100
Air pressure is often measured in ___________.
Millibars
100
the covering of gases around Earth is called the________
Atmosphere
100
ALTITUDE is the condition of Earth's atmosphere at a particular time and place
False weather
200
Harmful substances in air, water, or soil are called __________
pollutants
200
Which layer of the atmosphere protects Earth from Meteoroids?
mesosphere
200
As the density of air decreases, its pressure
decreases
200
the amount of mass in a given volume of air is its
Density
200
Fires need NITROGEN to burn
False Oxygen
300
A gas in the atmosphere that caries in different places and from time to time is __________
water vapor
300
The stratosphere helps protect Earth from too much ultraviolet radiation because this layer of the atmosphere contains_________
Ozone
300
Why do scientists recognize a boundary between layers at about 12 kilometers above sea level
The way that temperature changes with altitude changes
300
The distance above sea level is called __________
Altitude
300
Over the past 30 years, air quality in the United States has generally IMPROVED
True
400
Photochemical smog is caused by the action on chemicals of __________.
sunlight
400
Look at Graph 1 How does temperature change with altitude in the troposphere
As altitude increases, Temperature Decreases
400
The amount of mass in a given volume of a substance is its
Density
400
The four main layers of the atmosphere are classified according to changes in __________
Temperature
400
Air pressure decreases as altitude DECREASES
False Increases
500
Why would you have more trouble breathing at the top of a mountain than you would at sea level?
There are fewer oxygen molecules in a square meter of air at the top of a mountain
500
Graph 1. How does temperature change with altitude in the stratosphere
as altitude increases, temperature increases
500
How is the density of air at the top of a mountain different than the density of air at sea level
The air at the top is less dense than the air at sea level
500
___________ is the most abundant gas in the atmosphere
Nitrogen
500
Auroras occur in the IONOSPHERE
True