What makes racing bikes extra-fast? How do boats float? What makes an aircraft take off? Covering lots of different vehicles, including land vehicles such as bikes, cars and scooters, water vehicles such as large boats and speedboats, and airborne vehicles such as helicopters and aeroplanes, Race that Bike! takes a fun look at forces in vehicles. While learning about forces you will find that you also find out the answers to many questions that you have asked yourself about how vehicles work, and more. This Feel the Force series shows how forces and motion work in the world around us, in a set of high-interest situations. Each book includes three simple activities or investigations for readers to try. Overlays over large photos, plus diagrams, show how forces are acting in a given situation. Topics covered in the series include basic pushes, pulls and friction, air resistance, gravity, mass, weight and springs. Curriculum-related information on forces is delivered in a fun, high-intere Part of the Feel The Force series.