This page, put out by the National Weather Service, thoroughly explains the causes and types of tornadoes. Tornado safety is covered in the form of warning signs and what you can do to stay safe both in school and at home. The full...

Students learn about the causes, composition and types of volcanoes. They begin with an overview of the Earth's interior and how volcanoes form. Once students know about how a volcano functions, they learn how engineers predict...

Explains what earthquakes are, what causes them, the different types, tsunamis that can be caused by them, and how to prepare if living in an earthquake-prone area.