A fish wiggles its tail to push through the water. Science explains how fish glide underwater. How Fish Swim explains how a fish's body lets it slice through the water, and the forces at work to keep them swimming along. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards.