CPALMS
Florida State University Cpalms: Florida Students: Weathering, Erosion, and the Rock Cycle
Learn about the processes involved throughout the creation of sedimentary rock.
CK-12 Foundation
Ck 12: Earth Science: Age of Earth
[Free Registration/Login may be required to access all resource tools.] How scientists have been able to determine the age of the Earth.
CK-12 Foundation
Ck 12: Earth Science: Age of Earth
[Free Registration/Login may be required to access all resource tools.] How scientists have been able to determine the age of Earth.
US Geological Survey
Usgs: Geologic Time
This large U.S. Geological Survey site offers a look at the age of the earth, how radiometric dating is used to calculate it, the major divisions of geologic time, and the classification and use of fossils.
Australian Museum
Australian Museum: The Geological Time Scale
What was Australia like during prehistoric times? Follow through history from 110 million years ago until the present and discover the different mammals, birds, and reptiles.
CK-12 Foundation
Ck 12: Plix: Sedimentary Rock Classification
[Free Registration/Login Required] Get a visual of how sedimentary rock forms through an interactive animation on this site. Also, test your understanding with a short quiz.
CK-12 Foundation
Ck 12: Earth Science: Earth History and Clues From Fossils
How scientists can learn information about the past from fossils. [Free Registration/Login may be required to access all resource tools.]
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.
Center for Educational Technologies
Earth Floor: Geologic Time
This is a nice explanation of geologic time and Earth's major eras. Although this site is designed for younger students, it is mostly text with few images.
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]