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Glossary of Science Exam Cards 2

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ozone
It differs from normal oxygen (O 2) in having three atoms in its molecule (O 3).
water vapor
water in the form of gas
nitrogen
is used as a coolant, that creates ASID RAIN
carbon dioxide
essencial to life
density
the amount of mass of a substance in a given volume
pressure
the amount of force pushing in 1 area
air pressure
the weight caused by the column of air pushing down on one area
CFC's
the main cause of ozone depletion

chlorofluorocarbons
fossil fuels
the burning of them creates different types of pollutants
global warming
the gradual increase in the average temperature of Earth's atmosphere
nitrous oxides
combines with water to create nitric acid. which then creates ASID RAIN
sulfur oxides
combines with water to create sulfuric acid. which then creates ASID RAIN
asid rain
rain that contains more asid then usual
Aurora Borealis
a glowing region produced by the interaction of charged particles. seen towards the poles
Troposphere
the layer in which Earth's weather occures.

1st layer of the atmosphere

0km - 12km
Stratosphere
the layer that contains the ozone layer

the 2nd layer of the atmosphere

12km - 50km
Mesosphere
the 3rd layer of the atmosphere

50km - 80km
Thermosphere
the outermost portion if the atmosphere

the 4th layer of the atmosphere

divided into 2 sections

80km - NEVER-ENDING
Ionosphere
the lower layer of the Thermosphere

the 1st layer of the Thermosphere

80km - 400km
Exosphere
the outer portion of the atmosphere

the 2nd layer inside the Thermosphere

400km - NEVER-ENDING

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