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.

Portal of the University of California Museum of Paleontology provides access to the museum's extensive research resources and fossil holdings. Includes career preparation advice for future paleontologists and a series of links to...

See how fossils have shown evidence of evolution throughout the history of the Earth.

This activity is an inquiry-based, earth science field investigation of the geology of southeast Minnesota. Students will make observations of rock outcrops and landforms in the region using maps, pictures, and field sampling, then use...

Students analyze and interpret data for patterns in the fossil record that document the existence, diversity, extinction, and change of life forms throughout the history of life on earth under the assumption that natural laws operate...

[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.

Try these five multiple-choice questions about fossil evidence of change. After submitting answers, students can review the material.

Students identify the fossils and materials, and form a hypothesis as to how they were formed and what it was before preservation.

[Free Registration/Login may be required to access all resource tools.] There is good evidence that life has probably existed on Earth for most of Earth's history. Fossils of blue-green algae found in Australia are the oldest fossils of...

Access any one of thirty-six lectures from a biological sciences course, in audio, video, and text format. Coverage includes evolution, natural selection, the fossil record, the history of life on Earth, ecological communities,...

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

[Free Registration/Login may be required to access all resource tools.] Researchers studying the history of life on Earth spend hours digging, examining, pouring over fossils. What can fossils reveal about the past? Find out what fossils...

Visit the virtual exhibits at this site to learn more about paleontology, the history of the earth, and life on earth. Use the information on this site to understand geology, geologic time, evolution, and phylogeny.

In this unit you can learn about the history of our planet Earth. It has 25 interactive activities.

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.

As part of a larger online exhibit on fossils and what fossils are, this site specifically deals with the formation of fossils. A six-step, detailed chart is provided with specific information explaining each step.

This particular site is part of a larger online exhibit from the Natural History Museum covering various aspects of fossils and fossil research. Here, seven types of fossils are listed and each type is given a picture representation.

An image gallery of fossils through time. Students choose a time period to see what life was like by studying the fossils.

Explore life's evolutionary history on the planet through molecular illustrations and animations. Pictorial evidence is based on origin of life research and theory.

Under the expansive online exhibit from the Natural History Museum on fossils, this site examines a series of myths associated with fossils including topics on monkeys, snakes, serpents, monsters, and more.

This interactive activity is part of a series of modules that investigate the history of life on Earth. Students will understand the basics of fossils and how they form after completing this activity. Teacher guide and lesson plans...

Middle schoolers investigate fossils found in the Decorah Shale found in the Mississippi River bluffs. They will determine the name and description of the most common fossils. They will also determine how old the fossils are and what the...

With the use of GEOLogic questions, learners are asked to identify states with their respective state fossils, and determine the year in which it was declared, based on clues given from various points of view.

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