A lesson plan containing two activities for middle schoolers to gain a better understanding of geologic time scale. The first activity allows students to get a visual of geologic time by role playing events in time on a football field....

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.

Understand the history of the Earth through geologic time.

The American Geological Institute has done an excellent job of defining and explaining evolution in this online booklet. Darwin, fossils, natural selection, and change over time are some of the concepts that are covered. Make sure to see...

To understand how a geologic time works, students make a personal timeline and compare it to a geologic timeline.

The Black Hills Institute of Geological Research is a world-renowned center for paleontology. Here they describe in clear language how fossils are formed and preserved, and what information they give us about the past, particularly in...

Two-part instructional activity in which students learn about when and how coal was formed. They will do research on geologic time frames and order them by eon, era, period, or epoch.

For this investigation, students start exploring the U.S. Geological Survey's (USGS) online version of the geologic map of Texas. The geologic time scale shown will help them figure out how old the rocks are in various parts of Texas.

Pictures and text describe the source and appearance of many of the stones used in the buildings and monuments in Washington, D.C. Included are a geologic time chart and an illustrated map of the geologic and geographic features of the...

College-level biology book covers the Late Paleozoic geologic time period in Earth's history. See photographs of fossil evidence from that era in addition to diagrams to help with understanding.

This site from BioWeb Evolution was originally created as a ThinkQuest entry, and it has some good basic information about evolution. This page is on fossils and geologic time.

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.

This interactive timeline reveals key geologic and biological events starting back 4.8 billion years to the present.

Sedimentary rock forms in layers that are deposited one after the other over long periods of time. Oftentimes, sedimentary rock contains fossils and other debris that are deposited within the layers. Use this experiment to investigate...

Find out what the fossil record tells scientists about the geologic and biological history of the Earth.

Article reports on how the surface of the Earth changes over time. Includes a list of vocabulary words from the article.

Overview of the Earth in the Triassic Period as told by photos, news, and external links with an emphasis on what grew then, what lived then, the causes of mass extinction, types of fossils, and what life was like in general.

This resource from the United State Geological Survey provides data about San Francisco Bay's water quality. Data is displayed in time series plots, vertical profiles, longitudinal sections, space and time contours, and x-y scatter plots.

Fourth graders act as paleontologists to figure out the environment where various fossils would have existed.

Students learn about fossils - what they are, how they are formed, and why scientists and engineers care about them.

This site from Suzy's World, which is a personal site from Suzy Cato, explores what evolution is, and how long there has been life on earth. Content includes fun facts, a great experiment, and a classroom activity.

Investigate the Big Bang Theory of the origin of the universe by researching the light spectrum and the actions of light waves. Create models that illustrate red shift in a moving star and the expansion of the universe.