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Columbus City Schools
The Mystery of Earth’s History
Every living creature can leave a fossil record, yet most fossils belong to extinct organisms rather than ones currently living. Scholars learn about dating rock layers, fossils, and the environment of the past. Pupils understand that...
University of California
University of California Museum of Paleontology: Geologic Time
Learn about geologic time, including the age of the Earth by putting it in terms of pages in a book.