The guiding question for this activity is, “How can you design a boat to hold the most weight possible?” In this activity, students make foil boats and the most important concept to emphasize is the engineering cycle. Students will learn about force, gravity, buoyancy, and displace. An explanation of the science behind the activity is provided. Before beginning this activity, we recommend you read Chapters 9 and 10 which are in this book selection. Chapter 9 is an overview of the section and introduces the format used to present ideas for Family Science Night activities. Chapter 10 explains that these activities are what they call novice level. A materials list, references, safety notes, standards, and teacher background information are provided. This book selection also includes the Table of Contents, Preface, Acknowledgments, About the Authors, Introduction, and Index.