Did you know there are 20 volcanoes erupting at any given time? Pupils look at various igneous rocks, read local geologic maps, and determine if their area has a history of volcanic activity. A reading passage and analysis questions...

Amateur seismologists explore Earth's earthquakes in real time using a variety of map styles and parameter selections.

You don't have to travel far to learn about rocks, just step outside, pick up a stone, and begin investigating. After taking a class walk around the school grounds collecting rocks, young scientists practice their skills of observation...

Take young geologists on an exploration of the collection of rocks and minerals that we call Earth with an upper-elementary science lesson. Through a series of class discussion and hands-on investigations, students learn about the...

Breath new life into your class's study of dinosaurs with this extensive collection of materials. Offering everything from a printable T-rex mask, word searches, and connect-the-dots activities to informational handouts, hands-on...

Explore our world from within as you lead young scientists on a thrilling adventure. Pupils examine the location of plate boundaries to determine earthquake and volcano distribution around the globe and explore the cause of hot spots in...

Young scientists learn about plate tectonics and the three different types of faults (normal, reverse, and strike-slip) using foam models. The activity also covers common types of locations where these faults are found.

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...

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

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.

A discussion of geologic time, how scientists use the concept, and how they have determined its span.

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

This large U.S. Geological Survey site offers a look at the age of the earth, how radiometric dating is used to calculate it, the major divisions of geologic time, and the classification and use of fossils.

This site was created by two geoscientists. They explain the Principles of Geology. These are general rules, or laws, that are used to determine how rocks were created and how they changed through time. They are also used to determine...

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.

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...

Find out how fossil evidence has been the major link to learning about Earth's geologic history. See several illustrated interpretations of a geologic time scale in this online biology textbook.

An overview of the different geologic time periods and how each affected the area of what is now the state of Arkansas.

The geology of Alberta is profiled on this site. Drop menus reveal sub-topics ..geological time scale, rock formations in Alberta, and so forth.Graphics and maps are included.

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...

This 2-page handout provides short descriptions of the different aeons, eras, and periods in the Earth's geological history.

This excellent website walks students through the basics of understanding fossils. It emphasizes that most common fossils would be invertebrates and, after learning more about these life forms, students can choose to take a quiz. The...

Part of an online publication offered by the U.S. Geological Survey, this articles sheds light on how studying fossils became an important part of understanding geologic time.

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.