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.

These time lapse movies of Kilauea are hosted by the Hawaiian Volcano Observatory. This resource also includes a webcam which provides near real time footage of two active volcanoes.

This website integrates video footage and information with lesson plans and activities to teach students about the concept of relative dating. Students will graph a range chart for ammonites, determine the geologic age for several rocks,...

A classroom simulation modeling how earthquake waves travel through Earth at different speeds. A graph is constructed to demonstrate the relationship between the distance and time of travel of seismic waves, and then used to locate the...

This instructional activity teaches the concept of plate tectonics. Students will access the United States Geological Survey National Earthquake Information Center and plot the longitude latitude and depth of earthquakes on a...

This colorful, interactive site demonstrates how fossils can be used to discover a range of information about the past. Topics include Past Lives, Paleoecology, Geologic History, and Biodiversity.

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

Here is an interactive and printable crossword puzzle developed by the New York Times Learning Network. The theme of this puzzle is Rocks and Minerals.

[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.

Two part lesson allows for students to observe real fossils then make and recover their own fossils using mud.

[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 resource provides materials for teachers on a huge array of topics. Search site by topic, grade level, and desired output (such as lesson plan, case study, assessment or tutorial). Site is focused on earth science, geography, and...

This site from Digital Library for Earth System Education provides materials for students and teachers on a huge array of topics. Search site by topic, grade level, and desired output (such as lesson plan, case study, assessment or...

A very comprehensive article about the ice-free corridor which was possibly the passageway for Paleoindians to enter North America. The discussion includes geology as well as anthropolpgy.

A discussion of a migration theory of Paleoindians that went down the west coast of North America. Read about food sources, the geology, and the research behind the theory.

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.

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.

With GEOLogic questions, young scholars are asked to match several unique fossils with the sites and locations where they were found, as well as their geologic age.

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

Using GEOLogic questions and puzzles, students associate different dinosaur trackways with their locations and the rock formations containing the trackways based on clues given from various points of view.

Using GEOLogic puzzles, students are asked to match the five largest mass extinction events with their relative dates, approximate duration, and severity based on clues given from various perspectives.

Learn the basic information about the Mesozoic Era in Earth's geologic history.