UK metric edition. This collection of 25 fun, achievable STEM projects is the perfect way to encourage budding engineers and scientists and to show them how science applies in the real world. Using easy-to-source objects and following illustrated step-by-step instructions, design and build working models that move, fly, tick or light up! Develop your design, creative thinking and problem solving skills to make zip wires, vibrating brush monsters, computer controlled fairground rides and much more. Take on challenges such as building a lolly stick bridge and testing it to destruction or making a 10-second marble run.