Description
Using the whole lot from electric motors, balloons, and gears to water jets, steam, chemical reactions, or even gravity, this clever handbook offers various choices for propelling homemade vessels across a pool. Through step by step instructions with clear photos, kids will learn to build more than 20 different model boats for traveling above water and a number of different submarine projects for traveling below the surface. Along with the boatbuilding activities included within, young naval architects will find instructions for building an “ocean” to test the boats and various accessories, including four different water pumps, a water-resistant battery and motor case, and a working foghorn. A number of the watercrafts are built from recycled and easy-to-find materials, but an appendix also lists local and online sources for wire, plastic propellers, small motors, and more. Do-it-yourselfers and kids with an interest in how things work will find hours of educational entertainment within the projects offered within.