US Geological Survey
Usgs: Geologic Provinces of the United States: Records of an Active Earth
Discover what geological treasures abound all around the nation. The United States has been organized into provinces based on geological features. Click on a province on the map, or on the links below it, to view a page of information...
Curated OER
National Park Service: What Is Geologic Time?
A discussion of geologic time, along with a presentation of evidence for the time span involved.
University of California
University of California Museum of Paleontology: Uniformitarianism
Read about the pioneers in Earth's geologic history and their discovery of how the process of uniformitarianism shaped the study of evolution.
Encyclopedia of Earth
Encyclopedia of Earth: Geology: Petroleum Crude Oil
Article explaining what petroleum crude oil is, its composition, how it is formed, sources, how it is recovered, different classifications, products made from it, and its history. Includes a chart showing statistical information for...
Other
Planetary Society: Relative and Absolute Ages in Histories of Earth and the Moon
A lengthy scholarly article that discusses the geologic time scale, its history of development, age-dating events that occurred in different eras, and how absolute and relative dating are used to assess the ages of the Earth and Moon....
University of California
University of California Museum of Paleontology: Geology and Geologic Time
This site provides information about the geologic relationships of rock layers, as well as much about geologic time and the history of Earth.
University of Kentucky
University of Kentucky: Important Dates and Cool Creatures in Earth History
A bullet list of important events in Earth's history broken down by eons, eras, periods, and epochs.
Other
British Geological Survey: Past Climates Examples
Describes the climates during several periods in the Earth's history.
BBC
Bbc Nature: Prehistoric Life
Explore life on ancient Earth with this site! Students can walk with dinosaurs to see what Earth looked like or investigate Earth's history. The site includes articles, pictures, timelines, and lots more.
University of California
Ucmp: A Relative Dating Activity
An learning activity to help learners grasp the concept of relative dating and geologic time.
PBS
Pbs: Nova: Learning About Earth's History With Ice Cores
This resource explains how ice cores are used to analyze past events like air pollution, volcanic activity, climate changes, and radioactivity.
Vision Learning
Visionlearning: Atmosphere and Oceans: The Rise of Atmospheric Oxygen
An explanation of the Earth's atmosphere and how it has evolved over geologic time.
US Geological Survey
Lake Baikal: A Touchstone for Global Change
This site is an interesting article about Lake Baikal in Russia. This unique lake is helping scientists to learn more about the patterns of ecological change in the world and about the history of the world.
US Geological Survey
Usgs: Historical Perspective
A graphic map of Lauraisia is provided at this site on continental drift and the history of the Earth. You can also search text to find reference to Laurasia.
Curated OER
National Park Service: Oldest Rocks
Rocks can give us clues into the history of Earth. Learn what the rocks in the National Parks can tell us.
PBS
Pbs Learning Media: What's Up With the Weather: Graphs
Examine this graph from FRONTLINE/NOVA: "What's Up with the Weather?" Web site to see dramatic increases in three greenhouse gases over the last two hundred years.