Watercraft engineering becomes  the avenue for student inventors, scientists and artists to test their creative ideas with The Motorboat Book.  A myriad of concepts can be learned in a natural, hands-on way, such as buoyancy and density, chemical reactions, energy and energy  transformations, forces and motion, hydraulics, electric cirucits, just to name a few.  First, one needs an “ocean” in which to test the boats.  Contruction models for large, small and tiny oceans give the reader many options.  A variety of hulls are described , as well as 21 ways to propel that boat.  Pumps, to move water, submarines, projects suggestions round out the contents of this rich resource for  building motorboats.  Written in a “How To” format…materials needed and steps to take…prolific black and white photographs support the reader in following the instructions.  My only wish is that the photos were of higher quality, instead of fuzzy amateur snapshots…with poor lighting that, in a few cases, makes it even hard to  figure out what you are looking at.  I wanted this book for our collection because kids could get a lot of great ideas for their Science Fair projects.   And water play is universally fun!