The world around us is changing all the time. Some changes occur slowly. Glaciers take thousands of years to carve valleys out of rock. Other changes can be sudden and violent like earthquakes!
On page 30, there is a list of facts about the largest glacier and the fastest moving glaciers. Use this list as a model to write a fact box about volcanoes - the largest volcanic eruption, the most violent, and so on. Find information from the book and the Internet.