An 81-page slideshow that looks at the principles of geology with respect to relative dating, at different concepts describing geological processes, at absolute age and radiometric dating, at the eons and eras in the geologic time scale,...

This site provides information about the geologic relationships of rock layers, as well as much about geologic time and the history of Earth.

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.

[Free Registration/Login Required] This Flipchart accompanies chapter 14 in the Glencoe Earth Science text. The flipchart contains pictures that help students learn about Geologic time: Paleozoic, Mesozoic, Cenozoic and explains...

Here is an excellent example of a picture timeline. Follow the Eras of the Earth from Cenozoic all the way down to Precambrian with the use of fossils.

This comprehensive study guide covers the main terms and concepts needed for a unit on the evolution of multicellular life.

This illustrated timeline from the Lunar and Planetary Institute provides a journey through four-and-a-half billion years of time from the birth of our solar system to its current existence today.

[Free Registration/Login Required] This flipchart is a lesson on the geologic history of the Earth. It covers the four main eras of the geologic time scale: Precambrian, Paleozoic, Mesozoic, and Cenozoic. Characteristics of each era are...

Engaging and interactive timeline with illustrations and video on the origin of the Earth takes us from the Archean Era to the Cenozoic.

Explains the importance of index fossils for the dating and chronology of events in the fossil and geological records. Discusses uses and examples of index fossils in the Cenozoic, Mesozoic, and Paleozoic Eras.