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Chapter One

Lessons 1-4

QuestionAnswer
Weather The condition of Earth's atmosphere at a particular time and place.
Water Vapor Water in the form of a gas.
Atmosphere The envelope of gases that surrounds the earth.
Density The ratio of the mass substance to its volume.
Air pressure The pressure caused by the weight of a column of air pushing down an area.
Barometer An instrument used to measure changes in air pressure.
Android Barometer An instrument that measures changes in air pressure without using a liquid.
Mercury Barometer An instrument that measures changes in air pressure, consisting of a glass tube partially filled with mercury, with its open end resting in a dish of mercury.
Altitude Elevation above sea level.
Troposphere The lowest layer of Earth's atmosphere.
Mesosphere The layer of Earth's atmosphere immediately above the stratosphere.
Ionosphere The lower part of the thermosphere.
Stratosphere The second lowest layer of earth's atmosphere.
Thermosphere The outer most layer of Earth's atmosphere.
Exosphere The outer layer of Earth's atmosphere.
Electromagnetic waves A wave that can transfer electric and magnetic energy through the vacuum of space.
Radiation The transfer of energy by electromagnetic waves.
Greenhouse effect S The trapping of heat near a planet's surface by certain gases in the planet's atmosphere.
Scattering Reflection of light in all directions.
Ultraviolet radiation Electromagnetic waves with wavelengths of that are shorter than visible light but longer than X-rays.
Infrared Radiation Electromagnetic waves with wavelengths that are longer than visible light but shorter than microwaves.
Created by: mjarvis042
 

 



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