The guiding question for this activity is,“What design will help your car move the fastest and farthest?” In this activity, students will build balloon-powered cars. A number of materials can be used for this engineering challenge but the ones suggested are based on experience. A detailed science behind the activity is provided, which highlights Newton’s laws. Students will also learn about force, energy, and work. Before beginning this activity, we recommend you read Chapters 9 and 12 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 12 features activities that we believe to be advanced 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.