Earth landforms can look very different from place to place. They can be hilly, flat, or mountainous. Landforms can change their shape with earthquakes, volcanoes, floods, mudslides or erosion. Some of these changes take a long time, and other changes happen quickly. This nonfiction Beginning-to-Read book contains high-frequency words and content vocabulary. Connecting Concepts pages include a word list along with activities to strengthen early science...