By Glen Phelan
Weathering and Erosion: Wind, Water, and Waves introduces students to the processes of weathering and erosion that shape and reshape Earth’s surface. Students learn how these processes work hand-in-hand—once weathering has broken rock down into sediments, erosion carries the sediments away. Students also learn that a third major process—deposition—lays down these sediments in new places. Together these three processes are constantly changing the landscape around us. They not only determine the lay of the land, but also create the soil in which plants grow. At the end of each two-page spread, a brief statement called The Bottom Line reinforces students’ understanding by summing up the key ideas about weathering and erosion covered in those pages.