Name: _____________________________________________ Date: __________________________ Core: ___________ Earth’s Atmosphere Earth’s Atmosphere: _______________________________________________________________________________ _________________________________________________________________________________________________________ What is Earth’s Atmosphere Made Of? Gas Abundance Percentage (by Volume) 78% 21% 0.93% 0.038% 0.0018% 0.00052% 0.00015% 0.00011% 0.00005% Why is Earth’s Atmosphere so Important? _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ Earth’s Atmosphere helps sustain life by: 1) _____________________________________________________________________________________________ 2) _____________________________________________________________________________________________ 3) _____________________________________________________________________________________________ 4) _____________________________________________________________________________________________ Air Pressure: ________________________________________________________________________________________ _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ Measuring Air Pressure: To measure air pressure, we use a _______________________________. Types of Barometers: 1) Mercury Barometers: __________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ 2) Aneroid Barometers: ___________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ How Does Altitude Affect Air Pressure? _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ _________________________________________________________________________________________________________ Layers of the Atmosphere: 1) Troposphere – ___________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ Depth: ____________________________ km 2) Stratosphere – ___________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ Depth: ____________________________ km 3) mesosphere – ___________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ Depth: ____________________________ km 4) Thermosphere -­‐_________________________________________________________________________ _________________________________________________________________________________________________ _________________________________________________________________________________________________ Depth: ____________________________ km TWO LAYERS: A) Ionosphere -­‐ _____________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ B) Exosphere -­‐ ______________________________________________________________ ________________________________________________________________________________ 

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