Description 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! Small Parts – Not for children under 3 yrs. Product Details ISBN13: 9781338219630 Format: Art and Craft Kit Ages: 8 and up Grades: 3 and up Pages: 80 Weight (lbs): 1.315 Dimensions: 1.7 x 10.2 x 10.2 Lexile® Measure: 800L Reading Level: P DRA Level: 34 Language: English