ScienceDaily is an online magazine devoted to science, technology, and medicine. This is the home page for the Earth and Climate News section of ScienceDaily. ScienceDaily is unique in that the magazine's articles are selected from news releases submitted by leading universities and other research organizations around the world. Each news release is posted in its original form, with a contact name ... Full description.

This is the Teacher Page of an activity that teaches students about the stratigraphy of lava flows produced by multiple eruptions. This page has background information on lava flows (with an emphasis on the Moon), recipes for the play dough required for the activity, and questions for the teacher to ask. The procedures for this activity can be found on the Student Page. This activity is part of Exploring ... Full description.

These activities allow students to explore many different ways to measure and record time. The most important points are that almost any regular, predictable phenomenon can be used to record the passage of time and orderly patterns of these phenomena help to construct useful frames of reference from which calendars evolved and are still evolving. In addition, any proposed calendar must be compatible ... Full description.

This Why Files article looks at tsunamis in the wake of the July 17, 1998 disaster in Papua New Guinea that killed over a thousand people. Topics covered are: the causes of tsunamis, tsunami movement across the ocean, the history of some killer tsunamis of the last few hundred years, and ways to reduce human vulnerability to tsunamis. Readers can download a movie about how investigators think the ... Full description.

These six moon related activities are presented within six topic headings: observing the moon (including the phases), the origin of the moon, and tides. This is chapter six of the online book Eyes on the Sky, Feet on the Ground, an exploration into astronomy as a classroom tool for learning how to theorize, experiment, and analyze data. The activities are fully illustrated and contain detailed, step-by-step ... Full description.

This site discusses and defines a number of extinction concepts and provides a survey of some important extinction and extinction-like events, primarily from the Phanerozoic. There is information about species transitions, abrupt and mass extinctions, patterns and causal mechanisms of extinction, and isotope studies. Events that occurred during the Proterozoic, Vendian-Cambrian, Upper Cambrian (Dolgellian, ... Full description.

This collection of virtual field trips and field trip guides spans the United States and Canada and is organized geographically. The sites contain descriptive local geological or earth science information and are developed by a variety of universities as course components as well as by local and national geological associations for professional and public education. Links to downloadable versions ... Full description.