Howard Hughes Medical Institute
Hhmi: Biointeractive: Earth Viewer
Watch the earth change with this interactive app? What did Earth look like 250 million years ago? Or 1 billion years ago? Or 4.5 billion years ago? What was the climate like in the deep past? Find the answers with EarthViewer, an...
Estrella Mountain Community College
Online Biology Book: Paleobiology: Fossils and Time
Find out how fossil evidence has been the major link to learning about Earth's geologic history. See several illustrated interpretations of a geologic time scale in this online biology textbook.
CK-12 Foundation
Ck 12: Earth Science: Determining Relative Ages
[Free Registration/Login may be required to access all resource tools.] Distinguishes how to tell which rock unit is older than the ones around it and so reveal the geologic history of the region.
CK-12 Foundation
Ck 12: Earth Science: Determining Relative Ages Study Guide
This comprehensive study guide covers the main terms and concepts needed for an earth science unit on determining relative ages. Review questions are included at the bottom of the study guide.
The Wonder of Science
The Wonder of Science: Ms Ess1 4: Geologic Time Scale
Work samples, phenomena, assessment templates, and videos that directly address standard MS-ESS1-4: geologic time scale.
Smithsonian Institution
National Museum of Natural History: Paleobiology: Geologic Time: The Oligocene
Travel through Earth's history to learn about the Oligocene time period, which is characterized by the appearance of most of the living families of mammals.
Smithsonian Institution
National Museum of Natural History: Paleobiology: The Archaean Eon
Journey into the past while reading this comprehensive overview of the Archaean Eon that covers topics such as early continents and oceans, first life on Earth, Earth's atmosphere, fossil evidence, and plate tectonics.
Woods Hole Oceanographic Institution
Woods Hole Oceanography Institute: History of the Earth
This interactive timeline reveals key geologic and biological events starting back 4.8 billion years to the present.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: Rock Art in the National Parks
Students learn the importance of protecting pictographs as part of their geologic heritage by making their own paint using natural ingredients to create art.
University of California
Ucmp: Sequencing Time
Lesson plan in which students place events in sequence, comparing their life to the history of the Earth.
TED Talks
Ted: Ted Ed: Four Ways to Understand the Earth's Age
The Earth is 4.6 billion years old- but how can humans relate to a number so colossal, and where do we fit on the geologic timeline? Joshua Sneideman reminds us of our time and place in the universe. [3:45]
Treehut
Suzy's World: Life on Earth
This site from Suzy's World, which is a personal site from Suzy Cato, explores what evolution is, and how long there has been life on earth. Content includes fun facts, a great experiment, and a classroom activity.
Estrella Mountain Community College
Online Biology Book: Paleobiology: The Late Paleozoic
College-level biology book covers the Late Paleozoic geologic time period in Earth's history. See photographs of fossil evidence from that era in addition to diagrams to help with understanding.
PBS
Nova: Magnetic Storms: When Compasses Pointed South
Earth's magnetic poles have reversed themselves throughout its long history. Find out what scientists know about these reversals. A geologic time line shows when the reversals occurred.
Famous Scientists
Famous Scientists: Charles Lyell
Learn about the works of Charles Lyell, a geologist who studied Earth's history.
American Geosciences Institute
American Geosciences Institute: What Can We Tell From the Fossil Record?
Find out what the fossil record tells scientists about the geologic and biological history of the Earth.
CK-12 Foundation
Ck 12: Plate Tectonics and Seas of the Paleozoic and Mesozoic Era Study Guide
[Free Registration/Login may be required to access all resource tools.] Provides a brief overview of plate tectonic activity during the Paleozoic and Mesozoic eras and the changes in sea level that occurred. Includes some questions to...