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Science - Unit 6

Layers of the Atmosphere - Part 2

QuestionAnswer
What percentage of the total mass of the atmosphere is below 32 kilometers? 99%
Which layer extends from 0 to 12 km? troposphere
Which layer extends from 12 km to about 50 km above the Earth's surface? stratosphere
Which layer extends from 50 km to about 80 km above the Earth's surface? mesosphere
Which layer extends from 80 km outward into space? thermosphere
Which layer extends from 80 km to about 400 km? ionosphere
Which layer extends from about 400 km into outer space? exosphere
The troposphere contains what percentage of the gases in the atmosphere? 75%
In which layer do you find the jet stream? tropopause
What is the temperature in the tropopause? -60 degrees Celsius
What is the temperature in the outer mesosphere? -90 degrees Celsius
How hot can the thermosphere get? 1,800 degrees Celsius
The temperature drops about how many degrees for every kilometer above the Earth's surface? 6.5 degrees Celsius
What is the temperature in the mesosphere? -100 degrees Celsius
What does the middle portion of the stratosphere contain? ozone layer
What are the 2 layers of the thermosphere? ionosphere & exosphere
Created by: lprinke