Weathering and erosion work together as natural forces, removing and transporting material. Sediments, the by-products of these processes, are subsequently deposited to produce characteristic landforms such as dunes, deltas, and glacial moraines. This slide show presents images of landforms that result from erosion and weathering, as well as measures designed to mitigate their unwanted effects. Full description.

These activities give students a hands-on feeling for the relationships between the Earth's structural layers and aid them in understanding the world around them. They will be able to identify (by modeling) the Earth's structure (core, mantle and crust) and also (by experiment and demonstration) the forces within the Earth that cause constant changes on the surface (earthquakes). Full description.

In this activity, students will make a turbidity current. They will discover how fluids of differing densities interact with one another, learn some ways the densities of fluids can be changed and observe how density currents transport and deposit tremendous amounts of sediment in lakes and in the ocean. Additional options allow students to create and observe different kinds of density currents. Full description.

This site introduces the several methods geologists use to monitor changes in a volcano. These methods assist in forecasting intrusions and eruptions and consist of ground movements, seismicity, gas geochemistry, and geology. As a result of this lesson, students will realize that eruptions have precursor activities, recognize patterns in volcano behavior, and interpret graphical data. This site includes ... Full description.

This website contains details and activities about dinosaurs. It covers the geologic time periods during which dinosaurs existed, a web-quest for dinosaur information, quizzes and games about various dinosaur topics, and research starters for projects and activities. For teachers, there are lesson plan suggestions, assessment ideas, and details for using this site in the classroom as a project. Links ... Full description.

This site explains the three types of faults that result from plate movement. Animated diagrams are used to demonstrate strike-slip faults, normal faults, and reverse faults. There are also four photographs that show the results of actual earthquakes. Full description.

This site explores the dual faces of Mother Nature in Hawaii by examining four powerful forces (volcanoes, earthquakes, tsunamis, and hurricanes), focusing on the disastrous impacts as well as lessons of hope and renewal. For each type of disaster, there are explanations of making predictions, types of damage, warning systems, emergency preparation, and survival stories. There are volcano and tsunami ... Full description.

These lesson plans about seismology and other earth science topics include descriptions of demonstrations, experiments and activities for teachers and students. The lessons are designed primarily for teachers of grades 5-12 but can be adapted to introductory college level earth science teaching. Lesson plans can be displayed on the screen or printed (in color) from a pdf version. Topics include: seismic ... Full description.

This site describes the skeleton of Tyrannosaurus rex at the University of California Museum of Paleontology and includes active links for more information. The first, Meet T. rex gives general information about the animal. The second link, Building T. rex, includes pictures of the actual construction of the skeleton. The third link contains children's art depicting various dinosaurs. The final link ... Full description.

This activity centers around the Modified Mercalli Intensity Scale, which contains brief descriptions of what people might have felt in an earthquake and what might have happened to buildings and natural features. The different levels of the scale are designated with Roman numerals, and they correspond to groups of effects that are produced by about the same amount of shaking. During this activity, ... Full description.