This marvellous experiment kit includes 15 different fun-filled science projects for you to safely complete at home, themed around Roald Dahl's best selling story. George Kranky used just about everything he could find to create his Marvellous Medicine to cure his Grandma of being a grizzly old grunion. If it was runny, gooey or powdery, in it went. In this amazing science kit, there are loads of safe, fun-filled experiments, inspired by Roald Dahl's terrific tale. Use safe household ingredients to see how chocolate can make George grow, create bubbling, firecracker potions, make a chicken shrink, Grandma launch in the air like a rocket and loads more.