SpringBots: 3-in-1 spring-Powered Machines Collection_Activity Book author ofJuno Valentine and the

author ofJuno Valentine and the Magical Shoes

Children will delight in exploring this beautifully illustrated 100PC Jungle Paradise puzzle printed on shiny

Once completed

and a little white mouse to spot on every page

SpringBots: 3-in-1 spring-Powered Machines Collection_Activity Book author ofJuno Valentine and theBuild a motorized robot, race car, and countdown timer all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring a spiral shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges. The mainspring inside the robot turns gears which enable it to march forward on two legs. The race car zooms across the