In this archeological excavation instructional activity, students complete 9 short answer questions based on a simulated archeological activity they performed in a small group.

A discussion of geologic time, along with a presentation of evidence for the time span involved.

The Museum of Paleontology at Berkeley offers an online geological time machine which allows you to catch a glimpse of ancient eras in earth's history. Click into an "Era" to learn about its stratigraphy, life forms, localities, and...

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,...

Publication delves into the importance of studying the Earth's history and how we go about doing it. View pictures and diagrams showing the geological time scale and fossil succession.

This resource provides an overview of the Mesozoic era, with details about each period of geological history.

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

[Free Registration/Login may be required to access all resource tools.] How the geologic time scale is divided.

Take a quick look at Earth's geologic time scale.

Appreciate the immensity of geologic time by scrolling through a timeline. Includes links to relevant portions of a video lecture and a detailed time line.

A slideshow for teachers and students exploring Earth's geologic timeline and history. Click the buttons at left to select the teacher or student version.

An excellent overview of the Paleozoic Era. It also provides a chart where you can learn information regarding each of the time frames within the era.

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.

Describes the different periods, epochs, and stages of the Cenozoic Era and the events that took place in them. Looks at geology and tectonic plate movements, climate, flora and fauna, and the emergence of mammals as the dominant life...

[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...

An overview of the geography and geology covering the landscape of what is now the state of Arkansas.Both have had important influences on the history and cultural development of Arkansas.

A black and white outline map that can be colored in, using the key provided, to show the geologic periods in Texas history. A full color map is available in the Texas Almanac, which is free to download from the main website.

A time line of Earth's geologic periods from 600 million years ago.

Pictures of fossils are arranged in chronological sequence and by geologic period. Pictures include scientific names and location where the fossils were found.

The activity fosters critical thinking and allows for student generated essential questions to further their understanding of Earth's history and geologic time.

Article describing the Pliocene Epoch, which lasted from 5.3 million to 1.8 million years ago, and was part of the Cenozoic Era. It covers subdivisions of the Pliocene, geology, and climate. (Published: January 20, 2010)

[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...

Journey into the past while reading this comprehensive overview of the Hadean Eon that covers topics such as the formation of the earth, its surface and atmosphere, fossil evidence, erosion and plate tectonics.

Offers an easy to understand explanation of the earth's layers and the fossils we find in each layer. It explains how these are interpreted by scientists to represent the evolution of animal and plant life through the geological eras.