Curated OER
Understanding Centuries
In this centuries worksheet, 5th graders fill in the missing time periods for 15 centuries and write 15 original time periods with equivalent centuries to years.
![Ga Virtual Learning: Time Periods [Pdf] Graphic](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Ga Virtual Learning: Time Periods [Pdf] Graphic")
Georgia Department of Education
Ga Virtual Learning: Time Periods [Pdf]
The date, historical context, genre/style, content, and effect of several different time periods including: Puritan Times, Rationalism/Age of Enlightenment, Romanticism, Realism, Modernism, and Contemporary/Postmodernism.
PBS
Nova: A Brief History of Earth
This timeline is a good resource if you are looking for brief descriptions of the geologic periods. Descriptions include pictures of common organisms for each period and the range of time covered by each period.
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.