A Brief History of Life on Earth
http://cnx.org/content/m12146/latest/

Ian Harrison, Melina Laverty, Eleanor Sterling, The Connexions Project


This brief article provides an overview of major events in the evolution of life on Earth, including the origination of life, transition to an oxygen atmosphere, and endosymbiotic origins of eukaryotes. Estimated dates are provided for each event, and most are accompanied by primary literature references. This resource would be useful for secondary school students or teachers wishing to assemble a timeline of evolution.


Subject: Environmental Science:Ecosystems:Evolution, Geoscience:Atmospheric Science:Climate Change, Biology, Environmental Science:Ecosystems, Geoscience:Atmospheric Science:Climate Change:History and evolution of Earth's climate, Biology:Ecology:Habitats, Biology:Evolution, Microbiology, Environmental Science:Global Change and Climate:Climate Change:History and evolution of Earth's climate
Resource Type: Pedagogic Resources:Overview/Summary, Pedagogic Resources
Grade Level: College Lower (13-14), High School (9-12)
Theme: Teach the Earth:Course Topics:Atmospheric Science, Teach the Earth:Incorporating Societal Issues:Climate Change, Teach the Earth:Course Topics:Ecology, Environmental ScienceKeywords: bacteria, photosynthesis, eukaryotes