In this Earth Science indoor laboratory inquiry, students will create their own geologic time scale based on observation of teacher supplied, historically correct fossil data and also relevant rock samples with the age of the rock sample...

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

[Free Registration/Login may be required to access all resource tools.] Describes relationship between evolution and the geologic time scale.

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,...

Introduce students to the vastness of geologic time and the concept of scale.

In this amazing interactive tutorial you will learn about what methods are used by geologists to learn about the history of the Earth. Investigate a geologic time scale and learn about how scientists have developed and organized a record...

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.

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.

Learn about geologic time, including the age of the Earth by putting it in terms of pages in a book.

This activity is specifically designed for a field trip to Drayton Hall, which is a historic plantation near Charleston, South Carolina. It does provide a model of how a similar activity could be designed for a local area, and there are...

Understand the evidence for ancient earth and the geologic time scale. Learn on this site how the earth can help scientist date discoveries.

A detailed set of exercises (downloadable) that guide students in developing an understanding of how scientists have created the geologic time scale.

In this interactive tutorial you will explore how geologists use clues in rocks to determine the order in which rocks formed. Learn how principles of radioactivity are used to assign actual ages to rocks. Students will explore fossils...

Students find a local location on a series of geologic maps (local,regional,and global) working from small to large scale. Map keys and map features are consulted in order to compose a "geologic address" from the most specific to the...

Using a geologic time scale and map students investigate the rocks in their area.

In this amazingly comprehensive tutorial you will learn about the geological and environmental changes that occurred during the geologic time scale.

[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...

[Free Registration/Login may be required to access all resource tools.] For life to evolve from simple single-celled organisms to many millions of species of prokaryotic species to simple eukaryotic species to all the protists, fungi,...

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.

[Free Registration/Login may be required to access all resource tools.] This comprehensive lesson by CK-12 explains how scientists learn about the past by examining and dating fossils.

[Free Registration/Login may be required to access all resource tools.] Describes how scientists learn about the past by examining and dating fossils.

A visualization activity where students can conceptualize the age of the Earth by observing dots on paper, making calculations and estimations, and discussing their findings with classmates.

A virtual tour of a Silurian reef. Includes information on geologic principles, the geologic time scale, and the Silurian period. Explores Silurian reefs and reef organisms.

Through informational text, interactive activities, animations, and video clips, students investigate evolutionary biology.