Using simple text, this book focuses on the science and technology behind boats.  It starts with the physics concept of density and why boats float followed by how different forces such as wind, paddles, propellers and engines can make a boat move .  The engineering concepts focus on how differences in the shape of the hull affect its ability to cut through the water.  Math is incorporated when discussing relative wind strengths in relation to sailboats.

This book effectively balances the need to simplify difficult science concepts and the opposite need to maintain enough complexity to communicate complicated concepts.  A solid choice for a library looking for STEAM titles for young readers.

Contains a table of contents, glossary, online links and a index.