Rides with a vertical drop are stomach wrenching and not for the faint of heart. Here we look at the science behind these successful rides and how engineering and science makes them work safely. Kids will find gravity easy to understand and remember, use a roller coaster as an example, it all makes perfect sense. Acceleration, weight, mass, G-force, kinetic energy and more. All explained in bite-size easy to understand nuggets, with photographs and clever illustrated explanations, designed specifically to get children into science. Kids love facts so each spread has a "That’s Incredible" fact to keep them entertained!