This educational site provides information about deadly forces of nature, such as, tornadoes, volcanoes, hurricanes, and earthquakes.

This site offers a wealth of online textbook-related materials that encourage the discovery of science in the world around us. Enter the site to access material on specific topics. Each section contains reading material (complete with...

Students are introduced to our planet's structure and its dynamic system of natural forces through an examination of the natural hazards of earthquakes, volcanoes, landslides, tsunamis, floods and tornados, as well as avalanches, fires,...

[Free Registration/Login Required] In this lesson students will recognize that changes that occur in the layers of the Earth (volcanoes and earthquakes) are a result of forces acting upon it.

In Spanish. Volcanoes are one of the most dynamic, powerful, and visible forces on Earth. Find out detailed information about the different volcanoes around the world.