Glaciers are icy giants that come and go with the ice ages. This first look at glaciers explores how they have shaped, and continue to shape, Earth''s landscape. From the ice sheets of Antarctica to the glacial basins of the Great Lakes, readers learn about the amazing power of ice on the move. Using concise language and introductory science vocabulary, this book answers questions that curious young scientists wonder about. How do glaciers form? How do glaciers shape Earth? What is their future? Color photographs, fast facts, and a hands-on activity augment the informative text.