Make, experiment, and play! This activity kit will have you building 11 machines including a gravity powered car and a wacky boxing robot. The fun doesn't stop once you've completed all of the projects in the book - open-ended prompts will inspire you to continue experimenting with your own designs and modifications!
Box Size: 25.4 x 1.91 x 25.4 cm. Ages: 8-12 years
