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How have we got todays atmosphere.
lesson
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4.0 (2 Reviews)

How have we got todays atmosphere.

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Grade Level Grades 9-12
Resource Type Activity
License

About This Lesson

Students learn about the changes that have occurred to earth to create an earth as we know it today.

Resources

Files

L2_-_Atmosphere_in_the_past.ppt

Activity
February 10, 2020
2.51 MB
4.0
2 Reviews
SML Member
July 04, 2016
SML Member
January 30, 2016
Generally good but you will need to take a look at the dates. Lots of 'millions' instead of 'billions' for example. Thanks
SML Member
March 19, 2012
Nice. Todays is spelt today's x
SML Member
January 26, 2012
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