The document discusses several natural disasters including a volcanic eruption in California in 1915, a hurricane in Texas in the early 1900s, a tornado in Wisconsin, and an earthquake in 1989 and asks how these events could change the Earth. It also asks students to name the three layers of the Earth - core, mantle, and crust - and discusses how natural disasters can cause changes to the Earth's surface, providing volcanic eruptions, hurricanes, and earthquakes as examples.