Thi lesson introduces students to destructive and constructive forces that shape the Earth's surface. It looks at Volcanoes, Landslides, and Earthquakes asking probing questions to get students to understand that the Earth can be destructive (to Humans), while being constructive to the Earth's surface, and it can all be done suddenly. There are links to the most powerful earthquakes ever witnessed on camera, as well as the most destructive landslides, and volcanic eruptions. It ends having the